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A method for measuring inorganic anions in glacier water

A technology of inorganic anions and measuring methods, applied in the field of measuring inorganic anions in glacier water, can solve the problems of expensive instruments and equipment, high experiment cost, large consumption of consumables, etc., and achieve the effect of low detection cost, high measurement accuracy, and low consumption of consumables

Active Publication Date: 2016-03-02
NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method must use a quaternary gradient pump, the equipment is expensive, the test takes a long time, the consumption of consumables is large, and the cost of the experiment is high.

Method used

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  • A method for measuring inorganic anions in glacier water
  • A method for measuring inorganic anions in glacier water

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Experimental program
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Embodiment Construction

[0017] A method for measuring inorganic anions in glacier water, which steps include:

[0018] (1) The detection method includes the following steps:

[0019] Preparation of standard curve: Dilute 1g / L chloride ion mother solution to prepare 10μg / ml, 50μg / ml, 200μg / ml, 500μg / ml chloride solution, and 1mg / L nitrous acid mother solution to prepare 1ng / ml, 3ng / ml , 9ng / ml, 15ng / ml nitrite ion standard solution, adjust the ion chromatograph to the following chromatographic conditions, and perform ion chromatograph analysis.

[0020] The chromatographic conditions during detection are as follows:

[0021] ⅠChromatographic column: WW, 4mm×250mm laboratory self-made; the stationary phase component of the column is polystyrene-diethylene with a degree of cross-linking of 5%-12%;

[0022] Ⅱ Eluent concentration: sodium carbonate 1.8-2.8mmol / L- sodium bicarbonate 0.2-0.6mmol / L

[0023] ⅢFlow rate of eluent: 0.8-1.2mmol / L

[0024] ⅣSampling volume: 50μL

[0025] (2) Determination of samples: Under t...

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Abstract

A disclosed measuring method for inorganic anions of glacier water is characterized by utilizing a plasma chromatography method and combining a self-made ion exchange chromatographic column to analysis a snow-ice sample solution, so that the chromatographic peak resolution of high-concentration chloride ion and low-concentration nitrites is substantially improved. Compared with the prior art, the measuring method is low in equipment price, short in measuring time, less in usage amount of consumed materials, low in detection cost and high in measuring precision.

Description

Technical field [0001] The invention relates to the measurement of inorganic anions, in particular to a method for measuring inorganic anions of glacier water. Background technique [0002] Snow ice is a storage reservoir of various substances in the atmosphere, an indicator of climate and environmental changes, and an important source of information on global climate and environmental changes. Snow and ice chemistry has become an important content of global change research. The anions and cations in snow and ice are reliable indicators that reflect climate change and environmental evolution. Therefore, studying the sources and transmission mechanisms of anions and cations and their secondary changes in snow and ice can not only restore the evolution of climate and environment. , And more importantly, it can provide new evidence of interactions between geospheres, especially for the study of the migration and transformation of substances between the atmosphere, lithosphere, hydro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02
Inventor 王晓香张海霞张耀南崔晓庆王肖波李森
Owner NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
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