| 纺织服装网www。vhao。net假如运用了含有禁用芬芳胺的偶氮染料，在与人体的历久接触中，染料能够会被皮肤接收，并在人体内分散。在人体正常代谢所产生的生化反响前提下，这类染料会产生分化、复原反响，并释放出致癌芬芳胺。致癌芬芳胺经由活化感化，转变了人体的DNA构造，终究惹起人体病变和引发癌症。是以有关禁用偶氮染料检测成绩愈来愈惹起人们的看重，列国纷纭立法禁用可分化出致癌芬芳胺的偶氮染料。对于对禁用染料及致癌芬芳胺的磨练，我国也制订了响应的偶氮染料检测尺度，因为国标检测办法在实用规模、办法掌握上与欧洲尺度存在必定差别，招致二者检测成果分歧，法语论文，是以剖析国标与欧标在禁用偶氮染料检测方面的差别对我国纺织品检测技巧的成长有必定的指点感化。禁用偶氮染料的检测存在着以下弊病：耗时、技巧道路庞杂、效力低和检测本钱高。针对这类情形，本文还经由过程对气相色谱质谱联用仪检测前提的优化，极年夜地延长了检测时光，进步了检测效力。本论文重要研究内容分为两部门：1、比拟偶氮染料检测前处置进程中的国度尺度与欧洲尺度的差(1)依照国标和欧标的操作办法，分离对涤纶及涤/锦混杂样品中的偶氮染料停止检测。试验注解对于全涤纶及涤混样品经由氯苯萃取后的检测值比不经氯苯萃取的检测值年夜。(2)评论辩论芬芳胺分别时参加氢氧化钠和萃取试剂甲基叔丁基醚、乙醚对检测值的作用。经由过程比拟后得出：参加氢氧化钠后的检测值比不加的年夜，更接近现实情形。甲基叔丁基醚的萃取后果比乙醚的好。2、气相色谱质谱联用仪(GC一MS)检测前提的优化。(1)参照欧洲尺度中色谱柱的运用前提，采取15℃/min。20℃/min、25℃/min。30℃/min、35℃/min的升温法式对混杂芬芳胺尺度溶液(30ppm)停止检测，初步剖断各芬芳胺的保存时光和分别度。继而进一步优化，得出升温法式为：初温100℃，坚持1min，30℃/min到210℃，25℃/min到240℃，10℃/min到280℃，坚持3min。(2)经由过程比拟初始温度及保存时光对各类芬芳胺检测值的作用，终究选择初始温度为：100℃，保存时光为：1min。(3)评论辩论分歧分流比对芬芳胺检测呼应值及分别度的作用，法语论文范文，联合现实情形得出最好分流比为15：1。经由过程混杂芬芳胺尺度溶液和空白样品加标试验验证该检测办法的重现性，检测值，收受接管率，和曲线线性均能知足请求。 Abstract: Textile clothing net Vhao. Net if used to contain banned aromatic amine azo dyes in and long-term contact of human body. The dye can be absorbed by skin, and in the human body dispersion. Under the premise of the normal metabolism of the human body, this kind of dye will produce the differentiation, recovery reaction, and release carcinogenic aromatic amine. Carcinogenic aromatic amine through activation effect, change the DNA structure of the human body, eventually cause human disease and cause cancer. Is to about disabled azo dyes test increasingly aroused people value and diverse nations legislation disabled can be differentiated into carcinogenic aromatic amine azo dyes. On the use of prohibited dyes and carcinogenic aromatic amines, China has also developed a response to the detection of azo dyes, because the National Standard Test Method in the practical scale, approach and the European scale there is a certain difference, the difference between the two detection results is to analyze the difference between the national standard and the European standards for the detection of azo dyes in our country's textile testing technology has a certain guidance. The detection of azo dyes has the following disadvantages: time consuming, complicated, complex, low efficiency and high detection cost. For this kind of situation, this article also through the process of gas chromatography mass spectrometry detection of the premise of optimization, greatly extended the detection time, improve the detection effect. The main research content of this paper is divided into two sectors: 1, compared with the national standard and the European standard (1) in the process of detecting the pre treatment process of azo dyes, and the detection of azo dyes in polyester and polyester / nylon hybrid samples by the method of national standard and European standard. Test notes on the detection of the total polyester and polyester mixed samples after extraction of the value of the detection of the non - extraction. (2) the effect of the value of the detection of the value of the sodium hydroxide and the extraction reagent methyl tert butyl ether and ethyl ether on the detection of the aromatic amines are discussed. Through the process of comparison: in that the value of the detection of sodium hydroxide than Nianye, closer to the reality of the situation. The extraction of methyl tert butyl ether is better than that of ether. 2, gas chromatography mass spectrometry (GC MS) detection of the premise of optimization. (1) with reference to the application of the column in the European standard, 15 /min. 20 /min, 25 /min. 30 /min and 35 /min were detected by the standard solution of mixed aromatic amine (30ppm). And then further optimized, the heating process was as follows: 100, 1min, 30, /min, 25, 240, 10, /min, 280, /min, 210, 3min. (2) by comparing the initial temperature and the storage time to all kinds of aromatic amine detection value, after all, choose the initial temperature is: 100, save time is: 1min. (3) comments on the impact of differences in the distribution of the triage on the detection of the echo and the degree of response, and the combination of the actual situation to the best diversion ratio of 15:1. The reproducibility of the method was verified by means of mixed aromatic amine scale solution and blank sample. The detection value, the acceptance rate, and the linear curve can be satisfied. 目录: |
