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A kind of chromatographic reagent distillation recycling method

A technology for distillation recovery and chromatography is applied in the field of a method for distillation recovery and utilization of chromatographic reagents, which can solve the problems of complex structure, cumbersome maintenance and high use cost of a hydrogen flame detector, and achieve a stable and reliable method, simple and economical method, and cost saving. Effect

Active Publication Date: 2022-03-01
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

However, the structure of the hydrogen flame detector is complex, the maintenance is cumbersome, and the cost of use is high

Method used

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  • A kind of chromatographic reagent distillation recycling method
  • A kind of chromatographic reagent distillation recycling method
  • A kind of chromatographic reagent distillation recycling method

Examples

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Effect test

Embodiment 1

[0036]Based on the linear solvent intensity theory of liquid chromatography, a general reverse column chromatography column is connected to a high-performance liquid chromatograph equipped with a general ultraviolet detector for determination, weigh 10 mg of benzene phenol, add 100 ml. Methanol is prepared into a liquid, the high-performance liquid chromatograph is composed of a double pump, and the pump A is connected to the organic phase, and the pump B is connected to a water solution of 0.1% formic acid. The flow rate of the pump A and the pump B is controlled by the chromatographic workstation (where the total flow rate is 1.0 ml / min), the final mixing became a methanol mass fraction of 4.04, 8.16%, 12.37%, 16.67%, 25.53%, 34.78%, 39.56% methanol-aqueous solution, and equilibrated column for 20 minutes, respectively (column temperature control at 30 ° C), the mixed solution of methanol and 0.1% formic acid is the retention factor K, and the retention factor K is measured un...

Embodiment 2

[0043] Based on the linear solvent intensity theory of liquid chromatography, a normal reverse column chromatographic column is connected to a high-performance liquid chromatograph with a general ultraviolet detector for a general ultraviolet detector based on the linear solvent intensity theory of liquid chromatography. Determination, 100 μL of toluene was added to 100 mL of acetonitrile to be prepared to be tested, and the high-efficiency liquid chromatograph was composed of a double pump, and the pump A was attached to the organic phase acetonitrile, and the pump B was attached to the 0.1% aqueous solution of formic acid. The flow rate of pump A and pump B is controlled by chromatographic working stations, with a total flow rate of 1.0 mL / min, and finally mixed into a acetonitrile mass fraction of 34.50%, 44.13%, 64.83%, 87.67%, 100.00% acetonitrile-aqueous solution, and balanced respectively The column was 20 min, and the column temperature was controlled at 30 ° C; the tolu...

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Abstract

The invention relates to a method for recycling chromatographic reagents by distillation. The method selects markers for different chromatographic reagents (organic phases), and uses a high-performance liquid chromatograph (equipped with an ultraviolet detector) to measure their correspondence on the chromatographic column. The retention time of organic phase-water with different proportions φ, and calculate its capacity factor k', and then convert it to lg k', and finally draw the graph through lg k'-φ, and perform linear simulation to obtain its linearization formula and related simulations coefficient. Since the content of chromatographic reagents used in industrial chromatography ranges from 0% to 100%, and in order to achieve rapid detection, the content range covered by a single marker is limited, so the same chromatographic reagent often needs to use several different markers. lg k-φ standard curve and make it partially overlap with each other, so as to achieve full coverage of the content determination of the chromatographic reagent. The method is economical, reliable, and low in cost, and is very suitable for industrial chromatographic application production lines.

Description

Technical field [0001] The present invention relates to a chromatographic agent distillation recovery method, which develops an analytical method of organic phase content in a mixed solvent based on a linear solvent intensity of chromatography. Exploring the content distribution of organic phases during the distillation of chromatographic waste liquids to optimize the optimal distillation process route and ultimately accurately blending, thereby achieving recycling of chromatographic reagents. Background technique [0002] Preparation of liquid chromatography is an efficient separation and purification technique of modern growth in modern times, in the field of biomedicine, is currently important and role. Differential separation of the target material and the non-target can be obtained between the target object and the non-target to obtain an efficient separation between the target and the non-target. Due to its characteristics of highly efficient separation, modern prepared liq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02
CPCG01N30/02
Inventor 孙光映木尼热·阿布都艾尼古丽契热·阿地力赵永昕阿吉艾克拜尔·艾萨
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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