A method for dissolving magnesium metaphosphate for plasma spectrometry detection

A technology of plasma spectroscopy and magnesium metaphosphate, which is applied in the field of ion spectrometry to detect magnesium metaphosphate impurity elements to prepare its solution samples, can solve the problems of difficult measurement, increased background, large interference, etc., and reduce the lower limit of detection of the analysis. Ease of operation and improved analytical sensitivity
CN109030464BActive Publication Date: 2020-10-30HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD
Publication Date
2020-10-30
Patent Text Reader

Abstract

The name of the present invention is a method for dissolving magnesium metaphosphate by plasma spectrometry. It belongs to the technical field of plasma detection of magnesium metaphosphate. It mainlysolves the problem that the existing method has a complicated procedure and the sample solution contains a relatively high concentration of salt. Its main features are: (img file='DEST_PATH_IMAGE001.TIF' wi='19' he='24' / ) placing the magnesium metaphosphate powder sample into a dry beaker, adding enough concentrated perchloric acid and thick Sulfuric acid; (img file='645275DEST_PATH_IMAGE002.TIF'wi='19' he='23' / ) then heating at low temperature, slightly boiling to clear, cooling, diluting to the mark and shaking, to obtain the magnesium metaphosphate test sample solution. According to the method for dissolving magnesium metaphosphate by plasma spectroscopy, the magnesium metaphosphate sample solution prepared by the method of the invention has low salt content, small spectral backgroundand is suitable for measuring trace impurity elements in magnesium metaphosphate.
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Description

technical field

[0001] The invention belongs to the technical field of plasma spectrometry detection of magnesium metaphosphate, and in particular relates to a method for preparing a solution sample of magnesium metaphosphate when detecting impurity elements of magnesium metaphosphate by plasma spectrometry. Background technique

[0002] Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP-AES) is a commonly used plasma spectrometry detection equipment. It has high analytical sensitivity, wide linear range and low background, and is an effective method for the determination of trace elements in solution.

[0003] The general method that existing preparation plasma spectrometry detects impurity solution sample in magnesium metaphosphate is: 1, the magnesium metaphosphate sample powder of 1 gram solid is placed in silver crucible, then adds 2 gram sodium hydroxide in crucible, Gradually rise to 700 ° C to melt, soak in hot water, acidify with nitric acid, and dilute t...

Claims

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