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Measuring method for inorganic anions of glacier water

An inorganic anion and measurement method technology, applied in the field of inorganic anion measurement in glacier water, can solve the problems of expensive equipment, high experiment cost, long test time, etc., and achieve the effects of low detection cost, high measurement accuracy, and short measurement time.

Active Publication Date: 2014-12-24
NORTHWEST INST OF ECO-ENVIRONMENT & RESOURCES CAS
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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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  • Measuring method for inorganic anions of glacier water
  • Measuring method for inorganic anions of glacier water

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Embodiment Construction

[0019] A method for measuring inorganic anions in glacier water, the steps comprising:

[0020] (1) The detection method includes the following steps:

[0021] Preparation of standard curve: Dilute 1g / L chloride ion mother solution to prepare 10ug / ml, 50 ug / ml, 200 ug / ml, 500ug / ml chloride ion solution, dilute 1mg / L nitrite mother solution to prepare 1ng / ml, 3ng / ml, 9 ng / ml, 15 ng / ml nitrite ion standard solution, adjust the ion chromatograph to the following chromatographic conditions for ion chromatograph analysis.

[0022] The chromatographic conditions during detection are as follows:

[0023] ⅰ Chromatographic column: WW, 4mm*250mm self-made in the laboratory; the stationary phase component of the chromatographic column is polystyrene-diethylene with a cross-linking degree of 5%-12%;

[0024] ⅱ Eluent concentration: sodium carbonate 1.8-2.8 mmol / L-sodium bicarbonate 0.2-0.6 mmol / L

[0025] ⅲ Eluent flow rate: 0.8-1.2mmol / L

[0026] ⅳ Injection volume: 50uL

[002...

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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

[0001] technical field [0002] The invention relates to the measurement of inorganic anions, in particular to a method for measuring the inorganic anions of glacier water. [0003] Background technique [0004] Snow and ice are storages of various substances in the atmosphere, indicators of climate and environment changes, and important sources of information on global climate and environment changes. The study of snow and ice chemistry has become an important content of global change research. Anions and cations in snow and ice are reliable indicators to reflect climate change and environmental evolution. Therefore, research on the source, transport mechanism and secondary change mechanism of anions and cations in snow and ice can not only restore the evolution of climate and environment , and more importantly, it can provide new evidence for the interaction between geospheres, especially for the study of the migration and transformation of substances between the atmosphe...

Claims

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Application Information

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Patent Type & Authority Applications(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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