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GB 28145-2011: [GB/T 28145-2011] Gibberellic acid water soluble powders
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[GB/T 28145-2011] Gibberellic acid water soluble powders
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GB 28145-2011
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Basic data | Standard ID | GB 28145-2011 (GB28145-2011) | | Description (Translated English) | [GB/T 28145-2011] Gibberellic acid water soluble powders | | Sector / Industry | National Standard | | Classification of Chinese Standard | G25 | | Classification of International Standard | 65.100.30 | | Word Count Estimation | 10,165 | | Date of Issue | 2011-12-30 | | Date of Implementation | 2012-04-15 | | Quoted Standard | GB/T 1601; GB/T 1604; GB/T 1605-2001; GB 3796; GB/T 6451; GB/T 6682-2008; GB/T 8170-2008; GB/T 19136 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 23 of 2011 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Chinese standard specifies the gibberellic acid soluble powder requirements, test methods and marking, labeling, packaging, storage and warranty. This standard applies to the original drug gibberellic acid, suitable carriers and additives from the processing of gibberellic acid soluble powder. | GB 28145-2011: [GB/T 28145-2011] Gibberellic acid water soluble powders---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Gibberellic acid water soluble powders
ICS 65.100.30
G25
National Standards of People's Republic of China
Gibberellic acid-soluble powders
Issued on. 2011-12-30
2012-04-15 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
The standard Chapter 3, Chapter 5 is mandatory, the rest are recommended.
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
Please note that some content of this document may involve patents, the issuing authority of this document does not assume responsibility for the identification of these patents.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee on Pesticides (SAC/TC133) centralized.
This standard was drafted. the Ministry of Agriculture, Jiangxi Ruifeng Sheng Chemical Co., Ltd., Zhejiang Qianjiang Biochemical Co.,
Shanghai with the Swiss biotechnology company.
The main drafters of this standard. Yu Rong, Wang Xiaoli, Li Youshun, Chentie Chun, Zhao Yonghui, Li Guoping Lu love the sun, Zhu Jianxin, Chen Minglei.
Gibberellic acid-soluble powders
1 Scope
This standard specifies the gibberellic acid-soluble powder requirements, test methods and marking, labeling, packaging, storage and warranty.
This standard applies to the processing by the original drug gibberellic acid, vectors and suitable additives made of gibberellic acid-soluble powder.
Note. Other name, structural formula and basic physicochemical parameters of gibberellic acid in Appendix A.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Determination of GB/T 1601 Pesticides pH value
GB/T 1604 Goods pesticide regulations for acceptance
GB/T 1605-2001 Sampling Method commercial pesticides
GB 3796 pesticide packaging General
GB/T 5451 WP Pesticide wettability measurement method
GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)
GB/T 8170-2008 revised value represents about rules and limit values and judgment
GB/T 19136 Determination of Pesticide Thermal storage stability
3 Requirements
3.1 Composition and appearance
This product should meet the standards of the original drug gibberellic acid, carriers and additives made, it should be uniform powder.
3.2 Technical Specifications
Gibberellic acid-soluble powder shall comply with the requirements in Table 1.
Table 1 gibberellic acid-soluble powders Control Project Index
project
index
3% 10% 20% 40%
Gibberellic acid mass fraction /% 1.0 to 1.0 20.0 10.0 3.0 0.3-0.3 2.0-2.0 1.2-1.2 40.0
pH range of 3.0 to 7.0
Wetting time/s ≤ 40
The degree of dissolution and solution stability (through 75μm standard sieve) /%
(5min after residue) ≤
(18h after residue) ≤
5.0
1.0
Persistent foaming (foam volume after 1min)/mL ≤ 25
Thermal storage stability test a qualified
When a heat storage stability test for detection of normal production at least once every three months.
Test Method 4
Safety Tips. Use of this standard shall have practical experience of laboratory personnel work. This standard does not point out all of the safety issues. Make
With those who have the responsibility to take appropriate safety and health practices and to ensure compliance with the relevant national regulations.
4.1 General provisions
This standard reagents and water in the absence of other requirements specified, refers to three analytical reagent and GB/T 6682-2008 specified in
water. Test results determined in accordance with GB/T 8170-2008 4.3.3 Rounding the value comparison method.
4.2 Sampling
According to GB/T 1605-2001 "on solid preparation sampling" approach. Random sampling method is determined by the package, the final sample size should not be
Less than 300g.
4.3 Identification Test
The identification test can be carried out simultaneously with the determination of the mass fraction of gibberellic acid. Under the same chromatographic operating conditions, the main sample solution chromatogram
Retention time and peak standard solution of gibberellic acid chromatographic peak retention time, the relative difference should be less than 1.5%.
4.4 Determination of the mass fraction of gibberellic acid
4.4.1 Method summary
Sample dissolved in mobile phase, methanol - phosphoric acid as the mobile phase, use as filler to C18 stainless steel column and UV detector, for
Gibberellic acid in the sample by reverse phase HPLC separation and determination of external standard.
4.4.2 Reagents and solutions
Phosphoric acid;
Methanol. HPLC grade;
Water. The new secondary steam distilled water;
Phosphoric acid. [Psi] (water. phosphoric acid) = 2000.1;
Gibberellic acid standard sample. a known mass fraction w≥98.0%.
4.4.3 Instruments
High performance liquid chromatography. a variable wavelength UV detector and quantitative injection valve;
Chromatographic data processor or chromatography workstation;
Column. 250mm × 4.6mm (id) stainless steel column, built ZORBAXEXTENDC18,5μm filler (or with the same
Other effects such as columns);
Micro injector. 100μL;
Filter. filter pore size of about 0.45μm;
Ultrasonic cleaner.
4.4.4 HPLC operating conditions
Mobile phase. [Psi] (methanol. aqueous phosphoric acid solution) = 35.65;
Flow rate. 1.0mL/min;
Column temperature. room temperature (temperature change should not exceed 2 ℃);
Detection wavelength. 210nm;
Injection volume. 10μL.
Retention time. gibberellic acid about 8.2min.
HPLC operating conditions described above, the Department of typical operating parameters, according to the characteristics of different instruments, given operating parameters to make appropriate adjustments to
To obtain the best results. Typical gibberellic acid-soluble powders HPLC is shown in Figure 1.
1 --- gibberellic acid.
Figure 1 gibberellic acid-soluble powder by high performance liquid chromatogram
4.4.5 measuring step
4.4.5.1 preparation of standard solution
Weigh gibberellic acid standard about 0.05g (accurate to 0.0002g), placed in 100mL flask, add 35mL of methanol to dissolve, then
Phosphoric acid aqueous solution was diluted to the mark.
4.4.5.2 preparation of the sample solution
Weigh a sample containing about 0.05g of gibberellic acid (accurate to 0.0002g), placed in 100mL flask, add 35mL of methanol to dissolve,
Phosphoric acid aqueous solution and then diluted to the mark. Filtered through a 0.45μm pore size filters.
4.4.5.3 Determination
Under these operating conditions, after the instrument is stable, continuous injection of several doses of the standard solution until the two adjacent needles gibberellic acid peak area relative change
After less than 1.5%, according to the solution, sample solution, sample solution, standard order of standard solution was measured.
4.4.6 Calculation
The two needle sample solution and measured before and after the two doses of the standard sample solution of gibberellic acid peak area were averaged. Sample gibberellic acid
The mass fraction w1 (%), according to equation (1).
w1 = A2
· M1 · w
A1 · m2
(1)
Where.
A2 --- sample solution, gibberellic acid, the average peak area;
m1 --- gibberellic acid standard sample mass in grams (g);
w --- Sample mass fraction of gibberellic acid,%;
A1 --- standard solution, gibberellic acid, the average peak area;
m2 --- sample mass, in grams (g).
4.4.7 allowable difference
Determination of the difference between the results of two parallel, for 3% of gibberellic acid-soluble powder should be not more than 0.2%, for 10% and 20% of gibberellic acid
Soluble powders, should be less than 0.6%, for 40% of gibberellic acid-soluble powder, should be less than 0.8%, measured as the arithmetic mean
result.
Determination of 4.5 pH value
According to GB/T 1601 carried out.
4.6 Determination of wetting time
According to GB/T 5451 carried out.
4.7 Determination of the degree of dissolution and solution stability
4.7.1 Method summary
The degree of dissolution of the water soluble powder is dissolved in water 25 ℃ the standard, inverted 15 times and allowed to stand for 5min, filtered through a 75μm standard sieve, quantitative
Determination of sieve residue. Determination of the stability of solution and the solution is allowed to stand for 18h after, again with 75μm test sieve, sieve quantitative determination
The residue.
4.7.2 Instruments
Standard sieve. aperture 75μm, diameter 76mm;
Stoppered cylinder. the distance between (0mL ~ 250mL 250mL scale is 20cm ~ 21.5cm, 250mL scale line and the bottom plug
Distance of 4cm ~ 6cm).
4.7.3 Preparation of sample solution
Added 250mL graduated cylinder 2/3 standard hard water, warmed to 25 ℃, added 3g samples, plus standard hard water to the mark. cover
The stopper. Standing 30s, the cylinder 15 reverses the hand (180 °), reset, inverted, the reset time should not exceed the time spent 2s.
4.7.4 5min after test
The solution was allowed to stand in the cylinder specimen 5min ± 30s after the pour constant weight 75μm standard sieve, and the filtrate was collected 500mL
Beaker, reserved for the next test. 20mL graduated cylinder with distilled water five times, all insolubles were quantitatively transferred to a sieve and discard the wash
Liquid residue on the screen to check. If there is residue on the sieve, sieve 60 ℃ dried to constant weight, weighed in.
4.7.5 18h after the test
The filtrate was allowed to stand 18h, carefully observe whether the precipitation filtrate in the beaker. If there are insoluble materials, and the solution with constant weight
75μm standard sieve, sieve test with 100mL distilled water. If there exists a crystalline solid or sieve, sieve was dried at 60 ℃
To constant weight and weighed.
4.7.6 Calculation
Quality 5min after residue mass fraction w2 (%) and 18h after residue fraction w3 (%), respectively, according to equation (2) and (3) Calculated.
w2 = m2-m1m
(2)
Where.
Quality test sieve constant weight after m1 --- 5min, in grams (g);
Sample mass and sieve residue after m2 --- 5min, in grams (g);
M --- the quality of the sample, in grams (g).
w3 = m2-m1m
(3)
Where.
m1 mass of test sieve after constant weight --- 18h, the units of grams (g);
m2 sample mass and sieve residue --- 18h, the units of grams (g);
M --- the quality of the sample, in grams (g).
4.8 Persistent foaming test
4.8.1 Method summary
The 1g sample and standard hard water mixed foam volume after standing record.
4.8.2 Reagents
Standard hard water. ρ (Ca2 Mg2) = 342mg/L, pH = 6.0 ~ 7.0.
4.8.3 Instruments
Stoppered cylinder. 250mL (division value 2mL, the distance between 0mL ~ 250mL scale is 20cm ~ 21.5cm, 250mL scale
Line and the bottom plug distance of 4cm ~ 6cm);
Industrial scale. a sense of the amount of 0.1g, load 500g.
4.8.4 measuring step
Added 180mL standard hard water in a measuring cylinder, weighed into the sample 1.0g (accurate to 0.1g), added to the standard hard water from the bottom of the cylinder plug
Tick at 9cm, the cover plug to the bottom of the cylinder as the center, upside down 30 times (2s). On the test stand standing 1min,
Record foam volume.
4.9 Thermal storage stability test
According to GB/T 19136 in "powder formulations" to. After the thermal storage, gibberellic acid content shall not be lower than before the heat storage mass fraction of 95%.
4.10 Product inspection and acceptance
Shall comply with GB/T 1604's.
5 marking, labeling, packaging, storage, security and guarantee period
5.1 mark, label
Gibberellic acid-soluble powder marking, labeling and packaging should comply with the provisions of GB 3796.
5.2 Packaging
Gibberellic acid soluble powders applied to clean, dry, sealed polyethylene plastic bag or aluminum foil bag. Packed in corrugated cardboard boxes, each box
Net weight shall not exceed 25kg. According to user requirements or the order agreement, the use of other forms of packaging, but should be consistent with the GB 3796
Provisions.
5.3 Storage
Gibberellic acid-soluble powder packaging should be stored in ventilated, cool, dry coffers, fire, moisture, and can not be in the open air with toxic substances,
Flammable material and alkaline material stacked together. Not with food, seeds, feed mixed release.
Storage and transportation to prevent moisture and sun, and rain to avoid collision, away from fire.
5.4 Security
This product is a low toxicity plant growth regulator. In the instruction manual or on the container, in addition to have the appropriate eye-catching "low toxicity" logo, but also
The following statement should. diluted watered Do not place the product Disposable dilution to the use concentration; This product is stable in acidic and neutral solutions, and should not
Alkaline substances mix. In case of poisoning, should see a doctor.
5.5 Warranty Period
Under the specified storage conditions, warranties of gibberellic acid-soluble powder, two years from date of manufacture.
Appendix A
(Informative)
Other names gibberellic acid, structural formula and basic physicochemical parameters
This product is an active ingredient gibberellic acid is another name, structural formula and basic physicochemical parameters are as follows.
ISO common name. Gibberelicacid
CIPAC Numeric Code. 307
CAS Registry Number. 77-06-5
Chemical name. (1α, 2β, 4aα, 4bβ, 10β) -2,4a, 7- trihydroxy-1-methyl-8-methyl-3-ene-1,10-gibberellic acid -1 , 4a-
Lactone
Structure.
Empirical formula. C19H22O6
Molecular Weight. 346.4
Biological activity. Plant Growth Regulator
Melting point. 223 ℃ ~ 225 ℃ (decomposition)
Solubility. water 5g/L (room temperature). Soluble in methanol, ethanol, acetone, alkaline aqueous solution, slightly soluble in diethyl ether and ethyl acetate, insoluble
Chloroform. Its potassium, sodium, ammonium salts soluble in water (potassium salt 50g/L)
Stability. At room temperature in a dry state is stable, slow degradation in aqueous or aqueous alcohol solution in, DT50 (20 ℃) about
14d (pH3 ~ 4), 14d (pH7), alkali metal will be converted into less biologically active compounds, the case of thermal decomposition.
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