Method for measuring isothiazolinone antibacterial finishing agents in textiles

A technology of isothiazolinone and antibacterial finishing agent, which is applied in the field of product quality analysis, can solve the problem of simultaneous separation and detection of five ketone antibacterial agents, achieve good baseline separation effect, sharp peak shape, and simple qualitative process Effect

Active Publication Date: 2015-10-21
SHENZHEN ENTRY EXIT INSPECTION & QUARANTINE BUREAU INDAL PROD INSPECTION TECH CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no method for the detection of thiazolinone antibacterial agents in textiles, and there is no method for the simultaneous separation and detection of five ketone antibacterial agents

Method used

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  • Method for measuring isothiazolinone antibacterial finishing agents in textiles
  • Method for measuring isothiazolinone antibacterial finishing agents in textiles
  • Method for measuring isothiazolinone antibacterial finishing agents in textiles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 The detection method of isothiazolinone antibacterial finishing agent in textiles

[0036] Reagents and Materials

[0037] Methanol: chromatographically pure.

[0038] 5 kinds of isothiazolinone standard products: purity ≥ 98%, 5 kinds of isothiazolinone standard products are: 2-methyl-4-isothiazolin-3-one (referred to as MI), 5-chloro-2 methyl Base-4-isothiazolin-3-one (referred to as CMI), 1,2-benzisothiazol-3-one (referred to as BIT), 2-n-octyl-4-isothiazolin-3-one (referred to as OI), 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOI for short);

[0039] The detection steps are as follows:

[0040](1) Preparation of standard solution: Accurately weigh an appropriate amount of each isothiazolinone standard substance, prepare respectively a standard stock solution with a concentration of 1000 mg / L with methanol, pipette a certain volume of 5 kinds of isothiazolinones respectively Standard stock solution, placed in a brown volumetric flask, diluted with m...

Embodiment 2

[0058] Embodiment 2 Simultaneous separation and detection method of 5 kinds of isothiazolinone antibacterial finishing agents

[0059] Proceed as follows:

[0060] 1) Preparation of the mixed standard working solution: Weigh 5 kinds of isothiazoline antibacterial finishing agent standard products respectively, 5 mix the 5 kinds of isothiazoline type antibacterial finishing agent standard products, and the mixture is prepared into a concentration of 1000mg / L with methanol Standard stock solution, pipette the mixed standard stock solution of 5 kinds of isothiazolinone antibacterial finishing agents, place it in a brown volumetric flask, dilute with methanol and set the volume to the mark, shake well;

[0061] 2) Liquid chromatography conditions: XR-ODS (2.2μm), 100mm×3.0mm (inner diameter), column temperature is 40°C, column flow rate is 0.4ml / min, diode array detector is used, and the detection wavelengths are 277nm and 283nm respectively , the gradient elution condition is 0....

Embodiment 3

[0064] The precision experiment of embodiment 3 detection method

[0065] Select positive sample cotton sample, hemp sample, silk sample each, test 9 times respectively according to the method of embodiment 1, obtain the precision of the method, all positive samples all measure OI, specific result is as shown in table 1:

[0066] Table 1 Precision experiment of the method

[0067]

[0068]

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Abstract

The invention provides a method for measuring isothiazolinone antibacterial finishing agents in textiles, and relates to the field of product quality analysis, and discloses a method for separating and detecting the five isothiazolinone antibacterial finishing agents. The following liquid phase chromatographic conditions are adopted, and according to the liquid phase chromatographic conditions, a chromatographic column is XR-ODS (2.2 microns), the inner diameter is 100 mm*3.0 mm, column temperature is 40 DEG C, column flow speed is 0.4ml/min, a diode array detector is adopted, and detection wavelengths are 277 nm and 283 nm. According to the gradient elution conditions, the volume ratio of methanol to water is 40 to 60 for 0.00 min; the volume ratio of methanol to water is 90 to 10 for 1.90 min; the volume ratio of methanol to water is 90 to 10 for 6.00 min; the volume ratio of methanol to water is 40 to 60 for 6.01 min; 9.00 min. The five isothiazolinone antibacterial finishing agents are separated, a good baseline separation effect can be achieved, and peak types are sharp and symmetric.

Description

technical field [0001] The invention relates to the field of product quality analysis, in particular to a method for determining isothiazolinone antibacterial finishing agents in textiles. Background technique [0002] Isothiazolinone compounds are a new type of fungicides, which have the advantages of high efficiency, low toxicity, long duration of drug effect, and environmental safety, and have attracted extensive attention from experts in the fields of biology, medicine, and chemistry. With the wide application of isothiazolinone compounds in marine antifouling, industrial circulating cooling water treatment, industrial product anticorrosion, agricultural sterilization, etc., the environmental behavior and ecotoxicity of isothiazolinone compounds have attracted great attention. become a research hotspot in this field. EU Cosmetics Regulation 1223 / 2009 stipulates that CMI and MI can be used as preservatives in leave-on and rinse-off cosmetics, and the maximum concentratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02
Inventor 谢堂堂林君峰褚乃清
Owner SHENZHEN ENTRY EXIT INSPECTION & QUARANTINE BUREAU INDAL PROD INSPECTION TECH CENT
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