GB/T 39356-2020 English PDF

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GB/T 39356-2020: Determination of total nickel, total cobalt, total selenium, total vanadium, total stibium, total thallium in fertilizers - Inductively coupled plasma optical emission spectroscopy
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39356-2020	129	Add to Cart	3 days	Determination of total nickel, total cobalt, total selenium, total vanadium, total stibium, total thallium in fertilizers - Inductively coupled plasma optical emission spectroscopy	Valid

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Basic data

Standard ID: GB/T 39356-2020 (GB/T39356-2020)
Description (Translated English): Determination of total nickel, total cobalt, total selenium, total vanadium, total stibium, total thallium in fertilizers - Inductively coupled plasma optical emission spectroscopy
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G20
Classification of International Standard: 65.080
Word Count Estimation: 7,720
Date of Issue: 2020-11-19
Date of Implementation: 2021-06-01
Regulation (derived from): National Standard Announcement No. 26 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 39356-2020: Determination of total nickel, total cobalt, total selenium, total vanadium, total stibium, total thallium in fertilizers - Inductively coupled plasma optical emission spectroscopy

---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.
Determination of total nickel, total cobalt, total selenium, total vanadium, total stibium, total thallium in fertilizers-Inductively coupled plasma optical emission spectroscopy ICS 65.080 G20 National Standards of People's Republic of China Total nickel, total cobalt, total selenium, total vanadium, total antimony, Determination of total thallium content inductively coupled plasma Emission spectroscopy 2020-11-19 released 2021-06-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China Petroleum and Chemical Industry Federation. This standard is under the jurisdiction of the National Standardization Technical Committee for Fertilizers and Soil Conditioners (SAC/TC105). Drafting organizations of this standard. Yunnan Provincial Chemical Product Quality Supervision and Inspection Station, Shandong Normal University, Yunnan Yuntianhua Co., Ltd., Shanghai Chemical Research Institute Co., Ltd., Shandong Product Quality Inspection and Research Institute, Shanghai Chemical Industry Institute Testing Co., Ltd. The main drafters of this standard. Gui Suping, Zhang Jin'e, Li Zhou, Wei Houdao, Chen Meng, Wang Jian, Leng Yuanpeng, Zhang Juan, Mao Hongxiang, Wang Guodong, Sun Wendan, Hou Wenjing. Total nickel, total cobalt, total selenium, total vanadium, total antimony, Determination of total thallium content inductively coupled plasma Emission spectroscopy Warning---The hydrochloric acid used in this standard is corrosive, and nitric acid is corrosive and oxidizing. Some processes in the test method may be Lead to dangerous situations, the operator should take appropriate safety and protective measures. This standard does not point out all possible safety issues. user It is the responsibility to take appropriate safety and health measures and to ensure compliance with the conditions stipulated by relevant national laws and regulations.

1 Scope

This standard specifies the use of inductively coupled plasma emission spectrometry (ICP-OES) for the determination of total nickel, total cobalt, total selenium, total vanadium and total Antimony and total thallium content method. This standard applies to the determination of total nickel, total cobalt, total selenium, total vanadium, total antimony, and total thallium in fertilizers. The detection limits of this standard method are as follows. Nickel (Ni) is 0.02mg/kg; Cobalt (Co) is 0.02mg/kg; Selenium (Se) is 0.4mg/kg; Vanadium (V) is 0.02mg/kg; antimony (Sb) is 0.1mg/kg; thallium (Tl). 0.01mg/kg when step 6.2.2a) is used, 6.2.2b) It is 0.02mg/kg during the step.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document. GB/T 6682 Analytical laboratory water specifications and test methods HG/T 2843 Commonly used standard titration solution, standard solution, reagent solution and indicator solution for chemical analysis of fertilizer products

3 Principle

The sample is digested with aqua regia, the total nickel, total cobalt, total selenium, total vanadium, and total antimony in the sample form soluble salts, and inductively coupled plasma Emission spectrometer for quantitative determination. The sample is digested with aqua regia, and the total thallium in the sample is extracted with methyl isobutyl ketone and evaporated, and the residue It was dissolved in nitric acid and quantitatively determined with an inductively coupled plasma emission spectrometer.

4 Reagents or materials

4.1 General provisions. When the specifications of the water used in this standard are not specified, the pH range and conductivity should meet the requirements in GB/T 6682 Secondary water specifications; the reagents used in this standard refer to analytical reagents unless other requirements are indicated; the standard titration used in this standard The solution, standard solution, reagent solution and indicator solution are all prepared according to HG/T 2843 when the preparation method is not stated. 4.2 Nitric acid. pure superior grade. 4.3 Hydrochloric acid. pure superior grade. 4.4 Methyl isobutyl ketone. ......

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