YS/T 820.10-2012 PDF English
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Methods for chemical analysis of laterite nickel ores - Part 10: Determination of calcium, cobalt, copper, magnesium, manganese, nickel, phosphate and zinc content - Inductively coupled plasma atomic emission spectrometry
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YS/T 820.10-2012: Methods for chemical analysis of laterite nickel ores - Part 10: Determination of calcium, cobalt, copper, magnesium, manganese, nickel, phosphate and zinc content - Inductively coupled plasma atomic emission spectrometry
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YS
NONFERROUS METAL INDUSTRY STANDARD
ICS 73.060
D 04
Methods for chemical analysis of laterite nickel ores -
Part 10.Determination of calcium, cobalt, copper,
magnesium, manganese, nickel, phosphate and zinc
content - Inductively coupled plasma atomic emission
spectrometry
Issued on. NOVEMBER 07, 2012
Implemented on. MARCH 01, 2013
Issued by. Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword... 3
1 Scope... 6
2 Normative references... 6
3 Summary of methods... 7
4 Reagents... 7
5 Instruments... 9
6 Specimen... 10
7 Analytical procedures... 10
8 Calculation of analytical results... 11
9 Precision... 12
10 Test report... 13
Foreword
This part was drafted in accordance with the rules given in GB/T 1.1-2009.
YS/T 820-2012 “Methods for chemical analysis of laterite nickel ores” is divided
into 26 parts.
- Part 1.Determination of nickel content - Flame atomic absorption
spectrometry;
- Part 2.Determination of nickel content - Dimetylglyoxime
spectrophotometry;
- Part 3.Determination of total iron content - Potassium dichromate titration;
- Part 4.Determination of phosphorus content - Phosphorus molybdenum
blue spectrophotometry;
- Part 5.Determination of cobalt content - Flame atomic absorption
spectrometry;
- Part 6.Determination of copper content - Flame atomic absorption
spectrometry;
- Part 7.Determination of calcium and magnesium content - Flame atomic
absorption spectrometry;
- Part 8.Determination of silica content - Potassium silicafluoride titrimetric
method;
- Part 9.Determination of scandium and cadmium contents - Inductively
coupled plasma mass spectrometry;
- Part 10.Determination of calcium, cobalt, copper, magnesium, manganese,
nickel, phosphate and zinc content - Inductively coupled plasma atomic
emission spectrometry;
- Part 11.Determination of fluorine and chlorine contents - Ion
chromatography;
- Part 12.Determination of manganese content - Flame atomic absorption
spectrometry;
- Part 13.Determination of lead content - Flame atomic absorption
spectrometry;
- Part 14.Determination of the zinc content - Flame atomic absorption
spectrometry;
- Part 15.Determination of cadmium content - flame atomic absorption
spectrometry;
- Part 16.Determination of carbon and sulfur content - High-frequency
combustion with infrared absorption spectrometry;
- Part 17.Determination of arsenic, antimony and bismuth contents - Hydride
generation-atomic fluorescence spectrometry;
- Part 18.Determination of mercury content - Cold atomic absorption
spectrometry;
- Part 19.Determination of aluminum, chromium, iron, magnesium,
manganese, nickel and silicon contents - Energy-dispersive X-ray
fluorescence spectroscopy;
- Part 20.Determination of aluminum content - EDTA titration;
- Part 21.Determination of chromium content - The ammonium-ferrous
sulfate titration method;
- Part 22.Determination of Magnesium Content - EDTA Titration;
- Part 23.Determination of cobalt, iron, nickel, phosphorus, aluminum oxide,
calcium oxide, chromium oxide, magnesium oxide, manganese oxide,
silicon dioxide and titanium dioxide content - Wavelength dispersive;
- Part 24.Determination hygroscopic moisture content - Gravimetric method;
- Part 25.Determination of combined water content - Gravimetric method;
- Part 26.Determination of loss on ignition - Gravimetric method.
This part is part 10 of YS/T 820-2012.
This standard shall be under the jurisdiction of the National Nonferrous Metals
Standardization Technical Committee (SAC/TC 243).
Responsible drafting organizations of this standard. Beijing Research Institute
of Mining and Metallurgy, Bayuquan Entry-Exit Inspection and Quarantine
Bureau of the People's Republic of China, Jinchuan Group Co., Ltd.
Drafting organizations of this standard. Jinchuan Group Co., Ltd., Beijing
Research Institute of Mining and Metallurgy, Bayuquan Entry-Exit Inspection
and Quarantine Bureau of the People's Republic of China.
Participated drafting organizations of this standard. Changshu Entry-Exit
Inspection and Quarantine Bureau of the People's Republic of China, Northwest
Nonferrous Metal Research Institute, Nantong Entry-Exit Inspection and
Quarantine Bureau of the People's Republic of China, MCC Huludao
Nonferrous Metals Group Co., Ltd.
The main drafters of this part. Ma Xuli, Qin Fanglin, Qiu Ping, Wu Qiong, Zhao
Mingli, Feng Xianjin, Wang Yanjun, Wang Hui, Lu Ni, Dou Huaizhi, Li Xiujing,
Zhu Li, Hou Jin, Yu Hongbo.
Methods for chemical analysis of laterite nickel ores -
Part 10.Determination of calcium, cobalt, copper,
magnesium, manganese, nickel, phosphate and zinc
content - Inductively coupled plasma atomic emission
spectrometry
1 Scope
This part of YS/T 820 specifies the method for determining calcium, cobalt,
copper, magnesium, manganese, nickel, phosphate and zinc content in laterite
nickel ores.
This part applies to the simultaneous determination of calcium, cobalt, copper,
magnesium, manganese, nickel, phosphorus and zinc contents in laterite nickel
ores. The range of determination is as shown in Table 1.
Table 1 -- Range of determination (mass fraction)
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this standard.
YS/T 820.24-2012 Methods for chemical analysis of laterite nickel ores - Part
24.Determination hygroscopic moisture content - Gravimetric method
Element Range of determination / %
3 Summary of methods
The sample is decomposed by hydrochloric acid, nitric acid, hydrofluoric acid
and perchloric acid. The salts are dissolved by hydrochloric acid.
4 Reagents
Unless otherwise stated, only reagents identified as superior grade and the
distilled or deionized water or water of comparable purity are used in the
analysis.
4.1 Hydrochloric acid (ρ1.19 g/mL).
4.2 Hydrochloric acid (1 + 1).
4.7 Calcium standard stock solution. WEIGH 1.2486 g of calcium carbonate
(wCaCO3 ≥ 99.99%, which is dried in advance at 105 °C ± 5 °C and cooled in a
desiccator to room temperature); PLACE it in a 300 mL beaker; ADD 20 mL of
water; MIX it uniformly; COVER the watch glass; carefully ADD hydrochloric
acid (4.2) to dissolve calcium carbonate; ADD another 30 mL of hydrochloric
acid (4.2); BOIL it to remove carbon dioxide; REMOVE and COOL it to room
temperature; USE water to rinse the watch glass and beaker’s wall;
4.9 Copper standard stock solution. WEIGH 0.2000 g of metal copper (wCu ≥
99.95%); PLACE it in a 300 mL beaker; COVER the watch glass; slowly ADD
40 mL of nitric acid (4.4) to dissolve it at low temperature; DRIVE out the
nitrogen oxide; REMOVE and COOL it to room temperature; USE water to rinse
the watch glass and beaker’s wall; TRANSFER it into a 1000 mL volumetric
flask; USE water to dilute it to the mark; MIX it uniformly. 1 mL of this solution
contains 0.2 mg of copper.
4.11 Manganese standard stock solution. WEIGH 1.0000 g of metal
manganese (wMn ≥ 99.95%); PLACE it in a 300 mL beaker; COVER the watch
glass; slowly ADD 40 mL of nitric acid (4.4) to dissolve it at low temperature;
DRIVE out the nitrogen oxide;
4.12 Nickel standard stock solution. WEIGH 1.0000 g of metallic nickel (wNi ≥
99.95%); PLACE it in a 300 mL beaker; COVER the watch glass; slowly ADD
40 mL of nitric acid (4.4) to dissolve it at low temperature; DRIVE out the
nitrogen oxide; REMOVE and COOL it to room temperature; USE water to rinse
the watch glass and beaker’s wall; TRANSFER it into a 1000 mL volumetric
flask; USE water to dilute it to the mark; MIX it uniformly. 1 mL of this solution
contains 1 mg of nickel.
4.13 Phosphorus standard stock solution. WEIGH 0.4390 g of potassium
dihydrogen phosphate (reference reagent); DISSOLVE it in water; TRANSFER
it into a 1000 mL volumetric flask; USE water to dilute it to the mark; MIX it
uniformly. 1 mL of this solution contains 0.1 mg of phosphorus.
4.16 Mixed standard solution B. PIPETTE 20.00 mL of mixed standard solution
A (4.15) into a 200 mL volumetric flask; ADD 2 mL of hydrochloric acid (4.1);
USE water to dilute it to the mark; MIX it uniformly. 1 mL of this solution contains
1.0 μg of calcium, 1.0 μg of cobalt, 1.0 μg of magnesium, 1.0 μg of manganese,
1.0 μg of nickel, 0.5 μg of zinc, 0.1 μg of copper, 0.1 μg of phosphorus.
4.17 Blank solution. ADD a small amount of distilled water into a 1000 mL
volumetric flask; ADD 10 mL of hydrochloric acid (4.1); USE water to dilute it to
the mark; MIX it uniformly.
5 Instruments
5.1 Instrument and resolution
Inductively coupled plasma atomic emission spectrometer, which has an optical
resolution ≤ 0.008 nm (at 200 nm).
5.2 Analytical spectral line
5.4 Linearity of the working curve
The linearity of the working curve shall have a correlation coefficient greater
than 0.999.
6 Specimen
6.1 Specimen
The grain size of specimen shall be less than 160 μm.
7 Analytical procedures
7.1 Samples
WEIGH 0.20 g of sample, accurate to 0.0001 g.
7.2 Number of determinations
MAKE two determinations independently; TAKE the average value.
7.3 Blank test
MAKE a blank test along with the sample.
7.4 Determination
7.5 Drawing of the working curve
On the inductively coupled plasma-atomic emission spectrometer, USE the
series standard blank solution (4.17), mixed standard solution B (4.16), mixed
standard solution A (4.15) to determine the intensity of emitted light of calcium,
cobalt, copper, magnesium, manganese, nickel and phosphorus, zinc.
Respectively USE the mass fraction of the determined elements as the
abscissa, the intensity of emitted light as the ordinate, the instrument
automatically draws the working curve.
8 Calculation of analytical results
The amount of the determined element is calculated by the mass fraction wx of
the determined element, the value is expressed in %, which is calculated
according to formula (1) and formula (2).
9 Precision
9.1 Repeatability
For the determined values of the two independent test results which are
obtained under repetitive conditions, within the average range given below, the
absolute difference between the two test results does not exceed the
repeatability limit (r);
9.2 Reproducibility
For the determined values of the two independent test results which are
obtained under repetitive conditions, within the average range given below, the
absolute difference between the two test results does not exceed the
reproducibility limit (R); those which exceeds the reproducibility limit (R) does
not exceed 5%.
10 Test report
This clause specifies the contents of the test report. At least it shall give the
contents of the following aspects.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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