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