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A Method for the Simultaneous Determination of Five Preservatives in Leather Using Ultra Performance Convergence Chromatography

An ultra-efficient phase combination and preservative technology, applied in the field of chemical analysis and detection, can solve problems such as unsatisfactory separation effect, mobile phase solvent toxicity, slow analysis speed, etc., achieve high solvent extraction efficiency, shorten analysis time, and save time Effect

Active Publication Date: 2020-09-22
南京海关工业产品检测中心
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Problems solved by technology

[0010] Adopt high performance liquid chromatography to detect N-octylisothiazolinone (OIT), 2-(thiocyanate methylmercapto) benzothiazole (TCMTB), 4-chloro-3-cresol ( CMK) and o-phenylphenol (o-PP) with slow analysis speed, unsatisfactory separation effect, high toxicity of mobile phase solvent and high detection limit, the present invention provides a method for simultaneous determination of five kinds of preservative method

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  • A Method for the Simultaneous Determination of Five Preservatives in Leather Using Ultra Performance Convergence Chromatography
  • A Method for the Simultaneous Determination of Five Preservatives in Leather Using Ultra Performance Convergence Chromatography
  • A Method for the Simultaneous Determination of Five Preservatives in Leather Using Ultra Performance Convergence Chromatography

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Embodiment Construction

[0052] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0053] Main reagents, equipment and samples to be tested:

[0054] Reagents N-octylisothiazolinone (OIT), 2-(methylmercaptothiocyanate)benzothiazole (TCMTB), 4-chloro-3-cresol (CMK), triclosan (TCS) and o- Phenylphenol (o-PP) (U.S. Fluka Company, purity greater than 99%) (see Table 1), methanol and acetonitrile (chromatographically pure, German Merck Company), ammonium acetate (chromatographically pure, Sinopharm Group), anhydrous sulfuric acid Sodium, potassium carbonate (analytical grade, Sinopharm Group), acetic anhydride, n-hexane (analytical grade, Nanjing Chemical Reagent Company), and water was secondary deionized water.

[0055] Instrument ultra-high performance convergence chromatography (Waters company ACQUITY UPC 2 system), SW22 constant temperature water bath (temperature-controlled boiling water state, Youlaibo Technology Co., Ltd.), KS501 oscillator (...

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Abstract

The invention discloses a method for simultaneously measuring five corrosion removers in leather by adopting ultraperformance convergence chromatography, and belongs to the technical field of chemicalanalysis detection. The method comprises the steps of building a convergence chromatography technical program applicable to simultaneously detecting five corrosion removers including N-octyl isothiazolone, 2-(thiocyanic methyl sulfydryl)benzothiazole, 4-chloro-3-cresol, triclosan and o-phenylphenol in leather, a target compound is extracted, concentrated and filtered, qualitative and quantitativeanalysis is performed through the ultraperformance convergence chromatography, and the method is applicable to simultaneously measuring the five corrosion removers in leather shoes, leather productsand other leatherware. The method is high in sensitivity, good in stability, easy and rapid to operate, low in cost, environmentally friendly, and easy to apply and popularize.

Description

technical field [0001] The invention belongs to the technical field of chemical analysis and detection, and more specifically relates to a method for simultaneous determination of five preservatives in leather by ultra-high-efficiency convergence chromatography. Background technique [0002] The main function of preservatives is to inhibit the growth and reproduction of microorganisms, to prolong the storage time of consumer products, and to inhibit the corruption of substances. Prohibited preservatives have great biological toxicity to the human body, and can cause various diseases when inhaled or absorbed through the skin. Moreover, they also have an accumulation effect, a long natural degradation process, and are harmful to the environment. [0003] With the continuous development of science and technology, businesses have used a series of new toxic and harmful substances in order to avoid existing regulations. Therefore, it is necessary and urgent to establish and standa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 周佳丁友超钱凯汤娟程月
Owner 南京海关工业产品检测中心
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