加工定制:是 | 品牌:翔鹰技术 | 型号:XiangyingGC7990pllus |
测量范围:ppm | 测量对象:环氧氯丙烷 | 控温范围:450℃ |
功率:1800w | 尺寸:480mm | 重量:45kg |
环氧氯丙烷:顶空进样器 | 热解析仪:乙酸乙酯 | 二甲醚:甲醛 |
Epoxy chloropropane (ECH), don't watch chlorohydrine, chemical name: 3 - chloro - 1, 2 - propylene oxide, is a kind of volatile, unstable, chloroform sample odor colorless oily liquid, medium toxicity, is regarded as a possible carcinogen. Lower the hygiene standards of our country stipulated ECH (STEL acuities were 2 mg/m3, TWA 1 mg/m3) or less.
xiang ying eagle analysis technology co., LTD. Establish a determination of epoxy chloropropane in workplace air. Methods: epoxy chloropropane by activated carbon in the air tube, carbon disulfide desorption, the capillary column separation, hydrogen flame ionization detector. Results: the method of the minimum detection limit of 0.35 mu g/ml, the minimum detectable concentration is 0.12 mg/m3 (in 3.0 L air samples), linear range of 1.6 ~ 80 mu g/ml, relative standard deviation is 0.13% ~ 0.38%, and the correlation coefficient of 0.9999. The average sampling efficiency was 94.8%, the average desorption efficiency of 92.0%. Conclusion: this method is simple, sensitive and accurate, and suitable for the determination of epoxy chloropropane in workplace air.
环氧氯丙烷(ECH),别名表氯醇,化学名称:3-氯-1,2-环氧丙烷,是一种易挥发、不稳定、有氯仿样气味的无色油状液体,中等毒性,被认为是可能致癌物质。我国规定的ECH的卫生标准较低(STEL≤2 mg/m3,TWA≤1 mg/m3)。
滕州市翔鹰分析技术有限公司建立一种测定工作场所空气中环氧氯丙烷的新方法。方法:空气中的环氧氯丙烷用活性炭管采集,二硫化碳解吸后,经毛细管柱分离,氢焰离子化检测器检测。结果:方法的***检测限为0.35μg/ml,***检测浓度为0.12 mg/m3(以采集3.0 L空气样品计),线性范围为1.6~80μg/ml,相对标准偏差为0.13%~0.38%,相关系数为0.9999。平均采样效率为94.8%,平均解吸效率为92.0%。结论:该方法简单、灵敏、准确,适用于工作场所空气中的环氧氯丙烷的测定。