共查询到17条相似文献,搜索用时 93 毫秒
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对致癌染料的含义及致癌机理进行了讨论,针对丝绸行业用国产染料,列出了由偶氮结构还原降解而产生致癌芳香胺及遭到致癌芳香胺中间体污染的染料品种。同时介绍了用薄层色谱分析法检测纺织品中禁用偶氮染料的方法。 相似文献
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介绍了德国政府禁止使用“致癌染料”列出20种致癌化学结构,并列举了丝绸行业常用酸性,直接,活性,分散染料的致癌结构属类及其代用方向。 相似文献
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替代致癌染料中间体化合物的合成与表征 总被引:7,自引:0,他引:7
以对苯二胺、乙二胺、邻甲苯胺为原料 ,经氯磺化、酰胺化、脱乙酰基 ,高收率的合成了 2种新型替代致癌染料中间体 ,产品均经红外、质谱、核磁、元素分析表征 ,确证了结构。并确定了较佳的合成路线 相似文献
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禁用染料的使用直接关系到印染产品的质量,因而各国对非致癌染料的研究都非常重视。文章主要介绍了国外非致癌染料的合成及先进的染料检验方法。 相似文献
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本文利用HPLC-MS-MS和HPLC-DAD,分别测试了不同材质纺织品中酸性红114、酸性红26和直接黑38这三种直接致癌染料的含量。同时利用GB17592-2006中提供的方法,利用气质联用进行检测,比较了不同致癌染料分解致癌芳香胺的情况,建立了二者之间的联系,同时也明确了检测这三种致癌染料所需要采用的方法。 相似文献
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德国政府发布法规,禁止在纺织品中使用在特定条件下(还原)能分解出致癌芳香胺的偶氮染料。本文对使用禁用染料的纺织品进行还原研究,并用气相色谱─质谱联用分析法(GC—MS)检测致癌芳香胺,初步建立了一套检测纺织品中禁用偶氮染料的方法。 相似文献
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德国政府规定的118种禁用染料中,直接染料占有65%,其中绝大部分是以联苯胺、联甲苯胺和联大茴香胺等二胺类为中间体合成的,所以用其它无害的二胺类化合物合成的直接染料,是禁用直接染料的主要代用品,是国内外染料厂商近年来研究和开发的热点,文章详尽地列举了六大类二胺类化合物合成的直接染料作为代用染料。 相似文献
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Method development and survey of Sudan I–IV in palm oil and chilli spices in the Washington,DC, area
Susie Genualdi Shaun MacMahon Katherine Robbins Samantha Farris Nicole Shyong Lowri DeJager 《Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment》2016,33(4):583-591
Sudan I, II, III and IV dyes are banned for use as food colorants in the United States and European Union because they are toxic and carcinogenic. These dyes have been illegally used as food additives in products such as chilli spices and palm oil to enhance their red colour. From 2003 to 2005, the European Union made a series of decisions requiring chilli spices and palm oil imported to the European Union to contain analytical reports declaring them free of Sudan I–IV. In order for the USFDA to investigate the adulteration of palm oil and chilli spices with unapproved colour additives in the United States, a method was developed for the extraction and analysis of Sudan dyes in palm oil, and previous methods were validated for Sudan dyes in chilli spices. Both LC-DAD and LC-MS/MS methods were examined for their limitations and effectiveness in identifying adulterated samples. Method validation was performed for both chilli spices and palm oil by spiking samples known to be free of Sudan dyes at concentrations close to the limit of detection. Reproducibility, matrix effects, and selectivity of the method were also investigated. Additionally, for the first time a survey of palm oil and chilli spices was performed in the United States, specifically in the Washington, DC, area. Illegal dyes, primarily Sudan IV, were detected in palm oil at concentrations from 150 to 24 000 ng ml–1. Low concentrations (< 21 µg kg–1) of Sudan dyes were found in 11 out of 57 spices and are most likely a result of cross-contamination during preparation and storage and not intentional adulteration. 相似文献
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针对环保染色的市场需求,以天然植物为原料制备植物固色剂ZF,研究其性能、固色机制及应用效果。通过对甲醛、重金属离子、致癌芳香胺等指标的检测分析,证实ZF不含有害物质;将其应用于棉织物的天然染料染色,发现可提高色牢度0.5~2级,固色前后棉织物的强力、毛效等性能不受影响。UV和TGA分析结果表明,经该固色剂处理后的棉织物热稳定性不变, 抗紫外线性能改善;通过XRF、FTIR和SEM等分析,推断该固色剂对天然染料在棉织物的固色以交联成膜为主,固色剂ZF所含微量的Mg 、Al离子起辅助的媒介作用。ZF是环保、具有实用价值的植物固色剂。 相似文献