The Detection Method Establishment Of Triclosan And Application Research In Textile And Food Plastic Packaging Materials

Objective: Triclosan has been widely applied in the field of textile and food contactmaterials as efficient broad-spectrum antibacterial agent. Because it has thecharacteristics that could resistant to acid, alkali and high temperature, not ionize inthe solution, and has significant bactericidal effects. But high-dose exposure oftriclosan in long term not only can cause liver and kidney toxicity, also have certaineffects on the reproductive immune system, and cause irreversible damage to DNA.Currently, many countries have legislations to restrict the use of triclosan. In order toprotect people’s health, equilibrate international trade and protect the domestic textilemarket and food products, it is very necessary to establish the detection methods oftriclosan on textiles and food plastic packaging materials, the establishment of safetyand health monitoring detection system, and applied to the non-tariff barriers to tradein theimport and export trade.Methods: This paper respectively investigates the pretreatment conditions of theextraction solvent, ultrasound (microwave) extraction time, ultrasonic extractiontemperature, solid-phase extraction column selection, eluent proportions and washdeliquoring volume. Combining with high performance liquid chromatographytandem mass spectrometry(HPLC-MS/MS) technique, we establish the new methodsof triclosan for rapid detection in the textile and food plastic packaging materialssamples.Results:1. The method is established for detecting triclosan in textile samples.Detection methods in the0.01-to0.50g/g range, showed a good linear relationship,the linear equation is y=1.02e6x+8.83e3, correlation coefficient r2was0.9992. Amongthe range of recovery rate is92.8-101.2%, RSD%ranges from0.4578%-6.5930%,the detection limit was0.01g/g. The average detection value of1#sample is0.448 g/g, and2#is0.233g/g; the other samples are not detected triclosan.2. Themethod is established for detecting triclosan in food plastic packaging materialssamples. Detection methods in the0.1-50ng/g range, showed a good linearrelationship, the linear equation is y=3.99e3x+1.49e3, correlation coefficient r2was0.9995. Among the range of recovery rate is89.33-110.5%, RSD%ranges from1.26430%-7.10884, the detection limit was0.1ng/g. In addition to the#20samples, triclosan were detected in the rest of the samples.Conclusions: This study successfully established the methods of triclosan by highperformance liquid chromatography-tandem mass spectrometry in the textile andfood plastic packaging materials. The methods have the advantages of simple, shortdetection time, accurate and reliable, and fill in the gaps of triclosan detection in thetextile and food in plastic packaging materials. The issues play its due role toestablish and improve the inspection system, improve our monitoring inspectiontechnology, and improve the security status of the textile and food packagingmaterials.