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Method for detecting anions in active ink

A technology of reactive ink and detection method, which is applied in measurement devices, material separation, instruments, etc., can solve the problems of tailing, poor detection accuracy, and high detection cost, and achieve the effect of solving detection problems, reducing enterprise costs and prolonging service life.

Active Publication Date: 2016-05-25
浙江劲光纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] There are two problems in this pretreatment and detection method: (1) The life of the enrichment column is too short, each enrichment column can only detect 35 samples, and the detection cost is high
(2) When the dye of the reactive ink contains vinyl sulfone sulfate group, the tailing is serious during anion detection, and the detection accuracy is poor

Method used

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  • Method for detecting anions in active ink
  • Method for detecting anions in active ink
  • Method for detecting anions in active ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Introduce the standard sample into the Dianne ics-900 ion chromatograph with a new enrichment column, collect the signal data, and the obtained result is the same as figure 1 similar;

[0045] (2) According to the method of "Dian ics-900 ion chromatograph operating procedures", the Dion ics-900 ion chromatograph is used to continuously detect the sample to be tested. After each test is completed, adjust the valve and use the flushing liquid ( 70% acetonitrile aqueous solution) to rinse the pretreatment column for 30 minutes, balance the instrument with mobile phase (deionized water) before each detection until the baseline is stable, after continuous detection of 200 samples, the detection effect is still good;

[0046] (3) Enter the standard sample into the Diane ics-900 ion chromatograph after detecting 200 samples, collect signal data, and the obtained results are as follows image 3 shown.

[0047] From image 3 It can be seen that after adopting the method o...

Embodiment 2～5

[0049] The operation mode of Examples 2 to 5 is exactly the same as that of Example, the difference is that the flushing solution in step (2) is changed, and when the enrichment effect of the record enrichment column is obviously decreased, the number of samples detected and the used The number of samples tested when the flushing solution and the effect decrease

[0050] The detection condition and detection result of table 1 embodiment 2~5

[0051]

Embodiment 6～9

[0053] Turn on the ion chromatograph, equilibrate the instrument for 1 hour, and start sample injection after the instrument is well balanced. The sample is brought into the pretreatment column (the pretreatment column is a C18 column) by the mobile phase, and organic matter such as dyes is retained on the pretreatment column. The switching anions of the valve are directly brought into the enrichment column by the mobile phase, and then brought into the guard column through the mobile phase of the six-way valve in the enrichment column, and then directly enter the ion separation column for separation and detection after passing through the guard column. The organic matter remaining on the pretreatment column is washed by the flushing liquid and directly enters the waste liquid bottle after the valve is switched. The detection conditions of Examples 6 to 9 are shown in Table 2, and the chromatogram obtained in Example 6 is shown in Table 2. Figure 4 , the chromatogram that embo...

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Abstract

The invention discloses a method for detecting anions in active ink. The method includes the following steps that 1, after an ion chromatograph is balanced, a flowing phase is utilized to beat a prepared active ink sample into a pretreatment column for sample feeding; 2, after sample feeding is conducted, a valve is adjusted, the flowing phase is made to bring inorganic matter of the pretreatment column into an enriching column, the inorganic matter enters a detection device for detection after sequentially passing through a protection column and a separation column, and a detection result is obtained; 3, after detection is conducted, the valve is adjusted, flushing fluid is adopted to flush the pretreatment column, and next sample feeding is conducted; the flushing fluid is an acetonitrile water solution with the concentration of volume percent being 60-80%. According to the method, after flushing fluid is adjusted to the acetonitrile water solution with the concentration of volume percent being 60-80% from acetonitrile, resides of the inorganic matter in the pretreatment column are effectively reduced, it is avoided that the residues enter the enriching column, the service life of the enriching column is prolonged, and enterprise cost is lowered.

Description

technical field [0001] The invention belongs to the field of digital printing, in particular to a method for detecting anions in active inks. Background technique [0002] In recent years, textile digital printing technology has become a high-quality, low-cost and environmentally friendly textile printing production method due to its short production process, no need for plate making, novelty and convenience, high utilization rate of dyes, and no waste generation. The field of printing continues to expand, and the scale of industrialization continues to expand, showing a good prospect for industrialization. [0003] Digital printing requires the use of digital printing reactive dye inkjet ink (referred to as reactive ink), the quality of reactive ink directly affects the effect of digital printing. Reactive ink is composed of reactive dyes and a certain amount of auxiliaries. Among them, reactive dyes are water-soluble dyes, which are characterized by water-soluble groups. ...

Claims

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Application Information

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IPC IPC(8): G01N30/02
CPCG01N30/02
Inventor 王国林肖凤兰
Owner 浙江劲光纺织科技有限公司
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