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Ion chromatography for analyzing various trace metal ions in dye at the same time

A technology of trace metal and ion chromatography, which is applied in the field of ion chromatography for simultaneous analysis of multiple trace metal ions in dyes, can solve problems such as the inability to simultaneously measure multiple metal ions, achieve easy promotion and popularization, reduce instrument expenditure costs, Good data reproducibility

Active Publication Date: 2011-01-19
HANGZHOU JIHUA JIANGDONG CHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method can measure a variety of metal ions, it cannot simultaneously measure a variety of metal ions

Method used

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  • Ion chromatography for analyzing various trace metal ions in dye at the same time
  • Ion chromatography for analyzing various trace metal ions in dye at the same time
  • Ion chromatography for analyzing various trace metal ions in dye at the same time

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1: Ion chromatography for simultaneous analysis of trace amounts of lithium, sodium, potassium, magnesium, calcium, and barium in dyestuffs.

[0045] First, the first preparations:

[0046] 1. Li + 、Na + 、K + , Mg 2+ , Ca 2+ 、Ba 2+ Preparation of standard samples

[0047] 1) Li + Preparation of standard sample mother solution

[0048]Dry the analytically pure lithium carbonate at 105-110°C for 4 hours, then place it in a desiccator and cool it down to room temperature. Weigh 5.3227g of dried and cooled sodium chloride into a 250mL beaker, add deionized water to dissolve (two drops of hydrochloric acid can be added dropwise), transfer to a 1000mL volumetric flask, dilute and constant volume, and prepare a mother solution with a concentration of 1000mg / L spare.

[0049] 2) Na + Preparation of standard sample mother solution

[0050] Dry the analytically pure sodium chloride at 105-110°C for 4 hours, then place it in a desiccator and cool it to ro...

Embodiment 2

[0078] Embodiment 2: Analyze the ion chromatography of trace sodium, potassium, magnesium, calcium in the dyestuff simultaneously.

[0079] First, the first preparations:

[0080] 1. Na + 、K + , Mg 2+ , Ca 2+ Preparation of standard samples

[0081] 1) Na + Preparation of standard sample mother solution

[0082] Dry the analytically pure sodium chloride at 105-110°C for 4 hours, then place it in a desiccator and cool it to room temperature. Weigh 2.5420g of dried and cooled sodium chloride in a 250mL beaker, add deionized water to dissolve, transfer to a 1000mL volumetric flask, dilute and constant volume, and prepare a mother liquor with a concentration of 1000mg / L for later use.

[0083] 2) K + Preparation of standard sample mother solution

[0084] Dry the analytically pure potassium chloride at 105-110°C for 4 hours, then place it in a desiccator and cool it down to room temperature. Weigh 1.9067g of dried and cooled potassium chloride in a 250mL beaker, add dei...

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Abstract

The invention discloses an ion chromatography for analyzing various trace metal ions in a dye at the same time, which relates to a method for analyzing various trace metal ions in a dye. The ion chromatography comprises the following steps: comparing the spectrograms of a sample S solution and a blank solution with a series of standard sample spectrograms; calculating the content of each metal ion in the sample S solution and the blank solution according to the working principle of an ion chromatograph and a standard working curve; and subtracting the content of each metal ion in the blank solution from the content of each metal ion in the sample S solution to obtain the content of each metal ion in the sample S. The invention has the advantages of simplicity, easy operation, high analysis efficiency, low cost and easy popularization, while improving the analysis accuracy and prolonging the service life of the analysis equipment; and moreover, the test method of the invention has high sensitivity and the detection limit can reach 0.01 mg / L.

Description

technical field [0001] The invention relates to a method for analyzing various trace metal ions in dyes, in particular to a method for analyzing trace metal ions in dyes by ion chromatography. Background technique [0002] With the development of printing and dyeing technology, especially the emergence of inkjet printing and dyeing, the ion content (Na + 、K + , Ca 2+ , Mg 2+ etc.) have put forward higher control requirements, and there is an urgent need to establish a simple and easy-to-operate, low-cost and efficient test method. GB20814—2006 "Limitation and Determination of 10 Heavy Metal Elements in Dye Products" provides a method for testing heavy metal ions in dye products. After the dye is pretreated, the content of metal ions is determined by atomic absorption spectroscopy. However, atomic absorption spectrometry cannot conveniently measure multiple metal ions at the same time, and the instrument is relatively expensive, the test conditions are high, and the analy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/96
Inventor 付燕珍陈美芬简卫
Owner HANGZHOU JIHUA JIANGDONG CHEMICAL CO LTD
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