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Detection method for measuring tin content in soil by an inductively coupled plasma mass spectrometry

A detection method and content technology, applied in the field of detection of tin content in soil, can solve problems such as different spectral conditions

Inactive Publication Date: 2019-10-08
福建省农业科学院农业质量标准与检测技术研究所
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Problems solved by technology

[0004] Over the years, many scholars have done a lot of research on the determination of tin in different media, mainly using atomic fluorescence spectrometry and inductively coupled plasma atomic emission spectrometry to determine the content of tin. The spectral conditions of these determination methods are different. At present, countries, industries , There is no uniform and standardized standard method for the determination of tin in soil. Therefore, in order to scientifically and comprehensively evaluate the soil quality in Fujian Province and improve the core competitiveness of the environmental monitoring of agricultural product production areas in Fujian Province, Fujian Province has formulated a local method for the determination of tin content in soil. standards are necessary

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  • Detection method for measuring tin content in soil by an inductively coupled plasma mass spectrometry
  • Detection method for measuring tin content in soil by an inductively coupled plasma mass spectrometry
  • Detection method for measuring tin content in soil by an inductively coupled plasma mass spectrometry

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Embodiment Construction

[0017] 1 principle

[0018] After the sample is digested by microwave, the sample solution is introduced into the inductively coupled plasma mass spectrometer. For an ion to be measured with a certain mass-to-charge ratio, the mass spectrometer signal response is proportional to the number of ions entering the mass spectrometer, and the concentration of elements in the sample is determined by measuring the signal count of the mass spectrometer. The element content was calculated by the standard curve method.

[0019] 2 Reagents and materials

[0020] Unless otherwise stated, the reagents used in this method were of superior grade. The experimental water complies with the provisions of the first-class water in GB / T 6682.

[0021] Warning: All kinds of strong acids should be handled with care. Dilute and take them in a fume hood. When using perchloric acid, be careful not to burn it dry, and be careful of explosion.

[0022] 2.1 Hydrofluoric acid solution, ρ(HF)=1.49g / mL.

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Abstract

The invention provides a detection method for measuring tin content in soil by an inductively coupled plasma mass spectrometry. The method comprises the following steps: preparation of a standard usesolution, preparation of a standard solution, preparation of a test solution, preparation of a reagent blank solution, determination and the like.

Description

technical field [0001] The invention relates to a detection method for tin content in soil, in particular to a detection method for measuring tin content in soil by inductively coupled plasma mass spectrometry. Background technique [0002] Tin belongs to the fourth group of the fifth period of the periodic table of elements. In the electronic configuration of tin, the valence electrons are arranged as S 2 P 2 , which determines the existence of 2+ and 4+ oxidation states of tin. sn 4+ The formed compounds are mainly co-bonding valences, and the non-metallicity is also higher than the 2+ valence state. Therefore, Sn 4+ Can form complex complex anions. Tin has the triple nature of oxophilic, ferrophilic and sulfophilic. Tin preferentially forms SnO in an oxidizing environment 2 , showing oxophilicity; in reducing sulfur-rich environment, it shows sulfophilicity; in reduced mafic and ultramafic magma, it shows siderophilicity. But in general, the oxophilicity is the s...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/62G01N1/44
CPCG01N27/62G01N1/44
Inventor 罗钦潘葳罗土炎黄敏敏饶秋华黄锐敏吴建衍
Owner 福建省农业科学院农业质量标准与检测技术研究所
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