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HJ 84-2016

Chinese Standard: 'HJ 84-2016'
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HJ 84-2016English349 Add to Cart Days<=3 Determination of Water Inorganic Anions (F-, Cl-, NO2-, Br-, NO3-, PO43-, SO32-, SO42-) - Ion Chromatography Method Valid HJ 84-2016
HJ 84-2016Chinese18 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]

   

BASIC DATA
Standard ID HJ 84-2016 (HJ84-2016)
Description (Translated English) (Determination of Water Inorganic Anions (F-, Cl-, NO2-, Br-, NO3-, PO43-, SO32-, SO42-) Ion Chromatography)
Sector / Industry Environmental Protection Industry Standard
Classification of Chinese Standard Z16
Word Count Estimation 15,192
Date of Issue 2016-07-26
Date of Implementation 2016-10-01
Older Standard (superseded by this standard) HJ/T 84-2001
Regulation (derived from) Ministry of Environmental Protection Notice No.52 of 2016

HJ 84-2016
(Determination of Water Inorganic Anions (F-, Cl-, NO2-, Br-, NO3-, PO43-, SO32-, SO42-) Ion Chromatography)
National Environmental Protection Standard of the People 's Republic of China
Replacement. HJ/T 84-2001
2016-07-26 release
2016-10-01 implementation
Ministry of Environmental Protection released
Directory
Preface ii
1 Scope of application
2 normative reference documents
3 Principle of the method
4 interference and elimination
5 reagents and materials
6 instruments and equipment
7 samples .4
8 Analysis steps
9 Results calculation and presentation
10 Precision and Accuracy 6
11 Quality assurance and quality control
12 Waste treatment 7
13 Precautions 7
Appendix A (informative) method of precision and accuracy
Appendix B (informative) Anion standard solution chromatogram ..10
Preface
In order to implement the Environmental Protection Law of the People's Republic of China and the Law of the People's Republic of China on the Prevention and Control of Water Pollution,
Human health, regulate the determination of inorganic anions in water, the development of this standard.
This standard specifies the determination of inorganic anions in water by ion chromatography.
This standard is a revision of the "Determination of Water An Inorganic Anion by Ion Chromatography" (HJ/T 84-2001).
This standard was first published in.2001, the original standard drafting unit for the Shenyang City Environmental Monitoring Center Station. This is the first revision, repair
The main contents are as follows.
- Added two anions (Br-, SO3)
2-), the method of detection limit;
- added an eluent system;
- increased quality assurance and quality control provisions;
- revised sample storage time;
- revised sample pretreatment method;
- Revised the results of calculations and representations.
Since the date of implementation of this standard, the original standard "Determination of water quality inorganic anion ion chromatography" (HJ/T 84-2001) abolished.
Appendix A and Appendix B of this standard are informative.
This standard is organized by the Ministry of Environmental Protection Science and Technology Standards Division.
The drafting unit of this standard. Gansu Province Environmental Monitoring Center Station.
The standard verification unit. Xiamen University School of Chemistry and Chemical Engineering, Guangzhou University Analysis and Testing Center, Gansu Province Jiayuguan City Environmental Protection
Monitoring station, Beijing Physical and Chemical Analysis and Testing Center, Inner Mongolia Hulunbeier City Environmental Monitoring Station, Guangdong Environmental Protection Engineering Vocational College and
Jingmen City, Hubei Province Environmental Protection Monitoring Station.
The environmental protection department of this standard approved on July 26,.2016.
This standard has been implemented since October 1,.2016.
This standard is explained by the Ministry of Environmental Protection.
Warning. Chemical sodium fluoride, sodium nitrite and other chemical reagents used in the experiment are harmful to human health.
It is required to wear protective equipment to avoid contact with skin and clothing.
1 Scope of application
This standard specifies the determination of soluble inorganic anions in water by ion chromatography.
This standard applies to the determination of 8 soluble inorganic anions in surface water, groundwater, industrial waste water and domestic sewage.
When the injection volume of 25 μl, the method of 8 kinds of soluble inorganic anion method detection limit and determination of the lower limit in Table 1.
Table 1 Method Detection limit and lower limit of determination (mg/L)
2 normative reference documents
The contents of this standard refer to the following documents or their terms. Any annotated file that does not specify the date, its valid version
Applicable to this standard.
Technical Guidance for Water Quality Sampling
Technical specification for surface water and wastewater monitoring
Technical specification for groundwater environmental monitoring
3 Principle of the method
The anions in the water quality samples were separated by anion chromatography, and the controlled conductivity detectors were detected,
Time qualitative, peak height or peak area quantification.
4 interference and elimination
4.1 Some of the hydrophobic compounds in the sample may affect the chromatographic separation and column life. RP
Column or C18 column treatment to eliminate or reduce its impact.
4.2 Heavy metals and transition metals in the sample can affect the life of the column and can be reduced by H column or Na column
influences.
4.3 pairs of retention time similar to the two anions, when the concentration difference between the larger and low concentration of ions measured,
Dilute, adjust the flow rate, change the proportion of sodium carbonate and sodium bicarbonate concentration, or the use of hydroxide leaching, etc. to eliminate and reduce
Less interference.
4.4 When sodium carbonate and sodium bicarbonate eluent is used, the water can interfere with the determination of F-, and the sample can be separated from the standard solution.
Do not add the same amount of the same concentration and equal volume of eluent to reduce the water negative peak on the F- interference.
5 reagents and materials
Unless otherwise stated, analytical reagents conforming to national standards are used for analysis. Experimental water for the resistivity ≥ 18
MΩ · cm (25 ° C) and filtered through a 0.45 μm microporous membrane.
5.1 sodium fluoride (NaF). excellent grade, should be used before the 105 ℃ ± 5 ℃ dry constant weight, placed in a dryer to save.
5.2 sodium chloride (NaCl). excellent grade, should be used before the 105 ℃ ± 5 ℃ dry constant weight, placed in a dryer to save.
5.3 potassium bromide (KBr). excellent grade, should be used before the 105 ℃ ± 5 ℃ dry constant weight, placed in a dryer to save.
5.4 sodium nitrite (NaNO2). excellent grade, should be placed in the dryer before use for 24 h.
5.5 potassium nitrate (KNO3). excellent grade, should be used before the 105 ℃ ± 5 ℃ dry constant weight, placed in a dryer to save.
5.6 potassium dihydrogen phosphate (KH2PO4). excellent grade pure, should be used before the 105 ℃ ± 5 ℃ dry constant weight, placed in the dryer
In the preservation.
5.7 sodium sulfite (Na2SO3). excellent grade, should be placed in the dryer before use for 24 h.
5.8 Formaldehyde (CH2O). purity 40%.
5.9 anhydrous sodium sulfate (Na2SO4). excellent grade pure, should be used before the 105 ℃ ± 5 ℃ dry constant weight, placed in the dryer
In the preservation.
5.10 Sodium carbonate (Na2CO3). Before use should be dry at 105 ℃ ± 5 ℃ constant weight, placed in a dryer to save.
5.11 Sodium bicarbonate (NaHCO3). should be used in the dryer before the balance 24h
5.12 Sodium hydroxide (NaOH). excellent grade pure.
5.13 Fluoride standard stock solution. ρ (F -) = 1000 mg/L.
Accurately weighed 2.2100 g sodium fluoride (5.1) dissolved in the amount of water, the full amount into the 1000 ml volumetric flask, diluted with water
Constant volume to the marking, mixing. Transferred to the polyethylene bottle, in the 4 ℃ below the cold, dark and sealed can be stored for 6 months. also
You can purchase commercially available certified materials.
5.14 chloride ion standard stock solution. ρ (Cl -) = 1000 mg/L.
Accurately weighed 1.6485 g sodium chloride (5.2) dissolved in the amount of water, the whole volume into the 1000 ml volumetric flask, diluted with water
Constant volume to the marking, mixing. Transferred to the polyethylene bottle, in the 4 ℃ below the cold, dark and sealed can be stored for 6 months. also
You can purchase commercially available certified materials.
5.15 Bromide ion standard stock solution. ρ (Br -) = 1000 mg/L.
Accurately weighed 1.4875 g potassium bromide (5.3) dissolved in water, the amount transferred to 1000 ml volumetric flask, diluted with water
Constant volume to the marking, mixing. Transferred to the polyethylene bottle, in the 4 ℃ below the cold, dark and sealed can be stored for 6 months. also
You can purchase commercially available certified materials.
5.16 nitrite standard stock solution. ρ (NO2
-) = 1000 mg/L.
Accurately weighed 1.4997 g sodium nitrite (5.4) dissolved in the amount of water, the whole volume into the 1000 ml volumetric flask,
Release the volume to the mark, mix. Transferred to the polyethylene bottle, in the 4 ℃ below the cold, dark and sealed can be stored for 1 month.
You can also purchase commercially available certified materials.
5.17 nitrate standard stock solution. ρ (NO3
-) = 1000 mg/L.
Accurately weighed 1.6304 g potassium nitrate (5.5) dissolved in water, the amount transferred to 1000 ml volumetric flask, diluted with water
Constant volume to the marking, mixing. Transferred to the polyethylene bottle, in the 4 ℃ below the cold, dark and sealed can be stored for 6 months. also
You can purchase commercially available certified materials.
5.18 phosphate standard stock solution. ρ (PO4
3-) = 1000 mg/L.
Accurately weighed 1.4316 g potassium dihydrogen phosphate (5.6) dissolved in the amount of water, the whole volume into the 1000 ml volumetric flask, water
Dilute the volume to the mark, mix. Transferred to the polyethylene bottle, refrigerated at 4 ℃, dark and sealed can be stored for 1 month.
You can also purchase commercially available certified materials.
5.19 Sulfite standard stock solution. ρ (SO3
2 -) = 1000 mg/L.
Accurately weighed 1.5750 g sodium sulfite (5.7) dissolved in the amount of water, the whole volume into the 1000 ml volumetric flask, add 1 ml
Formaldehyde (5.8) is fixed (to prevent SO3
2 - oxidation), dilute the volume to the mark with water, mix. Transferred to polyethylene
Bottle, in the 4 ℃ below the cold, dark and sealed can be kept for 1 month.
5.20 Sulfuric acid standard stock solution. ρ (SO4
2 -) = 1000 mg/L.
Accurately weighed 1.4792 g anhydrous sodium sulfate (5.9) dissolved in the amount of water, the whole volume into 1000 ml volumetric flask, water
Dilute the volume to the mark, mix. Transferred to the polyethylene bottle, in the 4 ℃ below the cold, dark and sealed can be stored for 6 months.
You can also purchase commercially available certified materials.
5.21 mixed standard use of liquid
Respectively, 10.0 ml of fluoride ion standard stock solution (5.13),.200.0 ml of chloride ion standard stock solution (5.14),
10.0 ml bromide standard stock solution (5.15), 10.0 ml nitrite standard stock solution (5.16), 100.0 ml nitric acid
Root standard stock solution (5.17), 50.0 ml phosphate standard stock solution (5.18), 50.0 ml sulfite standard stock solution
(5.19),.200.0 ml sulfate standard stock solution (5.20) in a 1000 ml volumetric flask, diluted with water to constant volume,
Mix well. Formulated with 10 mg/L of F-,.200 mg/L of Cl-, 10 mg/L of Br-, 10 mg/L of NO2
-, 100
Mg/L of NO3
- 50 mg/L of PO4
3-, 50 mg/L SO3
2- and.200 mg/L SO4
2 - Mix the standard use of liquid.
5.22 eluent
According to the instrument model and column instructions for the use of conditions for preparation. The eluent conditions given below are for reference.
5.2.2 carbonate eluent I. c (Na2CO3) = 6.0 mmol/L, c (NaHCO3) = 5.0 mmol/L.
Accurately weighed 1.2720 g sodium carbonate (5.10) and 0.8400 g sodium bicarbonate (5.11), respectively, dissolved in the amount of water,
The whole volume into the.2000 ml volumetric flask, diluted with water volume to the mark, mix.
5.22.2 carbonate eluent II. c (Na2CO3) = 3.2 mmol/L, c (NaHCO3) = 1.0 mmol/L.
Accurately weigh 0.6784 g of sodium carbonate (5.10) and 0.1680 g of sodium bicarbonate (5.11), respectively, in the appropriate amount of water,
The whole volume into the.2000 ml volumetric flask, diluted with water volume to the mark, mix.
5.22.3 Hydroxyl eluent (produced automatically or manually by instrument).
5.22.3.1 Potassium hydroxide eluent. generated by the eluent automatic electrolysis generator on-line.
5.22.3.2 Sodium hydroxide eluent. c (NaOH) = 100 mmol/L.
Weigh 100.0 g of sodium hydroxide (5.12), add 100 ml of water, stir until completely dissolved,
Set 24 h, made sodium hydroxide stock solution, in the 4 ℃ below the cold, dark and sealed can be stored for 3 months.
Remove 5.20 ml of the above sodium hydroxide stock solution at 1000 ml, diluted with water volume to the mark, mix immediately after the transfer
To the eluent bottle. Can be added nitrogen protection, to slow down the alkaline eluent to absorb CO2 in the air and failure.
6 instruments and equipment
6.1 Ion Chromatograph. An analytical system consisting of an ion chromatograph, operating software, and required accessories.
6.1.1 Column. Anion Separation Column (polydivinylbenzene/ethyl vinyl benzene/polyvinyl alcohol matrix with alkyl quaternary ammonium
Or alkanol quaternary ammonium functional groups, hydrophilic, high-capacity columns) and anionic protective columns. An injection can be used to determine this regulation
Determination of the eight anions, the peak of the separation of not less than 1.5.
6.1.2 Anionic suppressor.
6.1.3 Conductivity Detector.
6.2 suction filter device. with a pore size ≤ 0.45 μm acetate fiber or polyethylene filter.
6.3 One-time water microporous membrane syringe filter. aperture 0.45 μm.
6.4 Disposable syringes. 1 ml to 10 ml.
6.5 Pretreatment Column. Polystyrene-divinylbenzene as the substrate of the RP column or silica gel for the matrix-bonded C18 column (removal of hydrophobicity
Compounds); H-type strongly acidic cation exchange column or Na-type strongly acidic cation exchange column (removal of heavy metals and transition metals
Ions) and other types.
6.6 Common laboratory equipment and equipment.
7 samples
7.1 Collection and storage of samples
Samples were collected according to the relevant regulations of HJ 494, HJ/T 91 and HJ/T 164. If SO3 is measured
2-, sample mining
After adding, must immediately add 0.1% formaldehyde (5.8) for fixation; the rest of the anion determination without adding fixative. collection
The samples should be analyzed as soon as possible. If it can not be measured in time, should be filtered through the filter device (6.2), frozen below 4 ℃,
Keep away from light. The storage time of the ions to be measured and the material requirements of the container are shown in Table 2.
Table 2 preservation conditions and requirements of water samples
The ion name holds the material storage time of the container
Polyethylene bottle for 14 days
Cl
Hard glass bottles or polyethylene bottles for 30 days
NO2
Hard glass bottles or polyethylene bottles for 2 days
Br
Hard glass bottles or polyethylene bottles for 2 days
NO3
Hard glass bottles or polyethylene bottles for 7 days
PO4
3-hard glass bottle or polyethylene bottle for 2 days
SO3
2-hard glass bottles or polyethylene bottles for 7 days
SO4
2-hard glass bottle or polyethylene bottle for 30 days
7.2 Preparation of the sample
For clean water samples that do not contain interfering substances such as hydrophobic compounds, heavy metals, or transition metal ions,
(6.2) after filtration, can be directly injected; can also be used with water microporous membrane syringe filter (6.3) of the one-time injection
(6.4) injection. For the complex water quality samples containing interfering substances, the corresponding pretreatment column (6.5) shall be used for effective removal
And then injection.
7.3 Preparation of blank samples
A laboratory blank sample was prepared in the same manner as in the preparation of sample (7.2) instead of the test water instead of the sample.
8 Analysis steps
8.1 Ion chromatographic analysis of the reference conditions
According to the instrument manual to optimize the measurement conditions or parameters, according to the actual sample matrix and composition optimization eluent
concentration. The following conditions are given for the analysis of ion chromatographic conditions.
8.1.1 Reference condition 1
Anion Separation Column (6.1.1). Carbonate eluent I (5.22.1), flow rate. 1.0 ml/min, inhibition of electrical inspection
(5.22.2), flow rate. 0.7 ml/min, inhibition of the
Type conductivity detector, continuous self-regenerative suppressor, CO2 suppressor. Injection volume. 25 μl. Under this reference condition,
The chromatograms for the ion standard solution are shown in Figure B.1 and Figure B.2 in Appendix B.
8.1.2 Reference conditions 2
Anion Separation Column (6.1.1). Hydroxyl eluent (5.22.3), flow rate. 1.2 ml/min, gradient elution conditions
See Table 3, Suppression Conductivity Detector, Continuous Self Cycle Regenerator. Injection volume. 25 μl. Under this reference condition,
The chromatogram of the ion standard solution is shown in Figure B.3 in Appendix B.
Table 3 Hydroxyl eluent gradient procedure analysis conditions
Time/min A (H2O) B (100 mmol/L NaOH)
0 90% 10%
25 40% 60%
25.1 90% 10%
30 90% 10%
8.2 Standard curve drawing
Respectively, accurate removal of 0.00 ml, 1.00 ml, 2.00 ml, 5.00 ml, 10.0 ml, 20.0 ml mixed standard use of liquid
(5.21) placed in a group of 100 ml volumetric flask, diluted with water volume to the mark, mix. Prepared into 6 different concentrations
Mixed standard series, the standard series of mass concentration in Table 4. According to the concentration of the measured sample to determine the appropriate standard series of concentrated
Degree range. According to their concentration from low to high order in turn into the ion chromatograph, record the peak area (or peak height). To separate
The mass concentration of the child is the abscissa, the peak area (or peak height) is the ordinate, and the standard curve is drawn.
Table 4 Anion Standard Series Mass Concentration
Ion Name Standard Series Mass Concentration (mg/L)
0.00 0.10 0.20 0.50 1.00 2.00
Cl
0.00 2.00 4.00 10.0 20.0 40.0
NO2
0.00 0.10 0.20 0.50 1.00 2.00
Br
0.00 0.10 0.20 0.50 1.00 2.00
NO3
0.00 1.00 2.00 5.00 10.0 20.0
PO4
3- 0.00 0.50 1.00 2.50 5.00 10.0
SO3
2- 0.00 0.50 1.00 2.50 5.00 10.0
SO4
2 - 0.00 2.00 4.00 10.0 20.0 40.0
8.3 Determination of samples
The sample (7.2) was injected with ions according to the same chromatographic conditions (8.1) and (8.2) as the standard curve
The anion concentration was determined by a chromatograph to preserve the time qualitative and the instrument response was quantified.
Note 1. If the test results exceed the standard curve range, the sample should be diluted with experimental water and then re-measured; can be diluted 50 to
100 times the post-test sample, and then select the appropriate results according to the results of the re-injection of the sample re-injection analysis, while recording the sample dilution factor (f).
8.4 blank test
The blank sample (7.3) was injected into an ion chromatograph according to the same chromatographic conditions and procedures as the test (8.3) of the sample
The anion concentration was determined to preserve the time qualitative and the instrument response was quantified.
9 Results calculation and representation
9.1 Results calculation
In the sample of inorganic anions (F-, Cl-, NO2
-, Br-, NO3
-, PO4
3-, SO3
2-, SO4
2-) mass concentration (,
Mg/L), calculated according to equation (1).
Ahh 0  (1)
Where.  - mass concentration of anions in the sample, mg/L;
H - the peak area (or peak height) of the anions in the sample;
0h - peak area (or peak height) of anions in laboratory blank samples;
A - the intercept of the regression equation;
B - the slope of the regression equation;
F - the dilution factor of the sample.
9.2 The result is shown
When the sample content is less than 1 mg/L, the results remain to three decimal places; when the sample content is greater than or equal to 1 mg/L,
The result retains three significant digits.
10 precision and accuracy
10.1 Precision
7 labs containing F-, Cl-, NO2
-, Br-, NO3
-, PO4
3-, SO3
2-, SO4
2 - Consistency of different concentrations
Samples were tested and the relative standard deviations in the laboratory ranged from 0.1% to 5.7%; the relative standard deviations between laboratories
Ranging from 1.4% to 5.8%. Method The precision test results are given in Table A.1 in Appendix A.
10.2 Accuracy
Seven laboratories were tested for different types of water samples in a unified matrix plus spiked samples with a median recovery of 81.7%
~ 118.3% between. The accuracy of the method is shown in Table A.2 in Appendix A.
11 quality assurance and quality control
11.1 Blank test
Each batch (≤20) sample should be at least two laboratory blank test, the blank test results should be lower than the method detection limit.
Otherwise, the cause should be identified and the sample can not be measured until it is passed.
11.2 Relevance test
The correlation coefficient of the standard curve should be ≥ 0.995, otherwise the standard curve should be redrawn.
11.3 Continuous calibration
Each batch (≤ 20) samples, should be a standard curve of the concentration of the standard solution, the determination of the results and standard
The relative error between the concentration of the quasi-curve should be ≤10%. Otherwise, the standard curve should be redrawn.
11.4 Precision control
Each batch (≤ 20) samples, should be measured at least 10% of the parallel sample, the number of samples less than 10, should be at least measured
Set a parallel double sample. The relative deviation of the results of the parallel two-phase measurement should be ≤10%.
11.5 Accuracy control
Each batch (≤ 20) samples, should be done at least one spike recovery, the actual sample of the spike recovery rate should be controlled
Between 80% and 120%.
12 Waste treatment
The waste generated in the experiment should be collected collectively, properly kept, commissioned by qualified units.
13 Precautions
13.1 due to SO3
2 - easily oxidized to SO4 in the environment
2-, in order to prevent its oxidation, in the preparation of SO3
2 - stock solution when added
Into 0.1% formaldehyde for fixation. Calibration series can be prepared using 7 1 way, that is, seven kinds of anion mixed standard series
And SO3
2 - Separate standard series.
13.2 Analysis of wastewater samples, the pretreatment column used should be able to effectively remove the hydrophobic compounds in the sample matrix, heavy gold
Or transition metal ions, while the determination of the anion does not occur adsorption.
Appendix A
(Informative)
Method of precision and accuracy
The data on the accuracy and accuracy of the seven laboratories are summarized in Table A.1 and Table A.2.
Table A.1 The precision of the method
ion
name
Precision
average value/
(Mg/L)
Laboratory relative
standard deviation/ %
Inter-laboratory relative
standard deviation/ %
Repeatability limit
R/(mg/L)
Reproducibility limit
R/(mg/L)
0.048 0.4 to 5.0 4.0 0.004 0.006
0.740 0.4 ~ 2.6 2.0 0.033 0.052
3.01 0.3 to 4.6 1.7 0.150 0.199
Cl
0.518 0.6 to 2.6 3.3 0.025 0.053
1.49 0.2 to 2.7 1.5 0.059 0.084
4.5-2 0.1 to 1.2 1.4 0.078 0.195
NO2
0.174 0.3 to 2.5 4.4 0.009 0.023
2.00 0.1 to 1.9 2.5 0.053 0.148
6.04 0.1 to 1.7 3.4 0.142 0.587
Br
0.150 1.2 to 3.8 2.8 0.010 0.015
2.46 0.1 to 1.5 1.9 0.062 0.144
4.51 0.1 to 1.2 1.1 0.072 0.158
NO3
0.516 0.3 to 2.3 5.1 0.030 0.080
2.46 0.1 to 1.4 2.7 0.052 0.190
4.46 0.1 to 2.3 2.0 0.125 0.278
PO4
0.467 0.4 ~ 4.1 1.8 0.027 0.034
3.97 0.1 to 0.2 2.3 0.208 0.316
10.0 0.1 to 1.8 1.9 0.278 0.596
SO3
0.217 1.1 to 5.7 2.6 0.021 0.025
2.45 0.1 to 4.2 2.3 0.133 0.201
9.86 0.1 to 1.5 1.6 0.225 0.484
SO4
0.424 0.3 ~ 4.6 5.8 0.028 0.073
4.98 0.1 to 1.2 2.5 0.103 0.362
20.2 0.1 to 0.6 1.8 0.201 1.06
Table A.2 The accuracy of the method
Ion name sample type
The original concentration /
(Mg/L)
Plus scalar /
(Mg/L)
Spiked recovery rate
Pi /%
The final value of the recoveries
S2 ± /%
Surface water 0.236 0.40 99.7 to 102.9 101.2 ± 2.4
Groundwater 0.102 0.40 97.1 ~ 104.8 100.7 ± 5.6
Domestic sewage 0.047 0.10 95.0 ~ 112.2 102.4 ± 16.4
Industrial Wastewater 0.021 0.10 92.6 ~ 110.3 102.9 ± 12.2
Cl-
Surface water 25.0 10.0 114.1 to 118.2 116.3 ± 3.2
Groundwater 19.4 10.0 109.3 ~ 117.0 113.1 ± 5.8
Domestic sewage 2.65 1.00 86.8 ~ 106.4 97.4 ± 17.4
Industrial Wastewater 1.43 2.00 81.7 ~ 106.0 96.5 ± 14.8
NO2
Surface water 0.175 0.50 89.5 ~ 93.0 91.6 ± 3.2
Groundwater ND 0.50 102.2 ~ 113.2 106.4 ± 7.8
Domestic sewage ND 0.20 92.5 ~ 107.5 99.4 ± 10.6
Industrial Wastewater ND 0.20 95.4 ~ 109.2 103.6 ± 10.0
Br-
Surface water ND 0.25 93.1 to 99.2 95.2 ± 4.2
Groundwater ND 0.25 84.0 ~ 93.3 89.4 ± 8.2
Domestic sewage ND 0.20 90.1 ~ 112.5 98.9 ± 14.4
Industrial Wastewater ND 0.20 92.0 ~ 108.1 101.1 ± 10.4
NO3
Surface water 5.12 10.0 98.1 to 100.0 99.1 ± 1.6
Groundwater 4.70 10.0 96.6 ~ 98.9 97.7 ± 2.0
Domestic sewage 1.85 0.40 91.7 ~ 108.3 99.8 ± 12.6
Industrial Wastewater 0.348 2.00 91.7 ~ 108.1 98.3 ± 14.6
PO4
Surface water ND 6.00 92.3 to 98.5 94.4 ± 6.4
Groundwater ND 6.00 96.2 to 102.1 99.3 ± 4.6
Domestic sewage ND 1.00 93.6 ~ 108.2 99.5 ± 10.4
Industrial Wastewater ND 1.00 91.1 ~ 105.8 95.9 ± 11.8
SO3
Surface water ND 5.00 86.9 ~ 106.0 94.4 ± 14.8
Groundwater ND 5.00 82.3 ~ 89.1 86.6 ± 4..6
Domestic sewage ND 1.00 87.5 ~ 105.5 95.3 ± 12.8
Industrial Wastewater ND 1.00 92.2 ~ 100.0 95.3 ± 6.2
SO4
Surface water 57.5 20.00 96.4 ~ 112.3 105.7 ± 14.0
Groundwater 17.7 20.00 101.4 ~ 114.5 105.5 ± 9.6
Domestic sewage 4.57 3.00 91.5 ~ 103.3 97.0 ± 9.0
Industrial Wastewater 2.95 5.00 93.0 ~ 104.1 97.5 ± 4.4
Note. ND means not detected.
Appendix B
(Informative)
Anion standard solution chromatogram
Figures B.1 to B.3 show the chromatograms of the anion standard solution corresponding to the three reference conditions.
1-F
- 2-Cl-; 3-NO2
- 4-Br-; 5-NO3
- 6-HPO4
2-; 7-SO3
2-; 8-SO4
Figure B.1 Chromatogram of eight anionic standard solutions (carbonate system I)
1-F
- 2-Cl-; 3-NO2
- 4-Br-; 5-NO3
- 6-HPO4
2-; 7-SO3
2-; 8-SO4
Figure B.2 Eight Anion Standard Solutions Chromatogram (Carbonate System II)
1-F
- 2-Cl-; 3-NO2
- 4-SO3
2-; 5-SO4
2-; 6-Br-; 7-NO3
- 8-PO4
Figure B.3 Chromatogram of eight anionic standard solutions (hydroxide system)
Related standard:   HJ 637-2018  HJ 970-2018
Related PDF sample:   HJ/T 83-2001  HJ 637-2018
   
 
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