莱伯泰科sepaths up柱-尊龙凯时人生就博官网登录
发表时间：2017/12/30 点击次数：1446
typical steps of solid-phase extraction common-used solvent compatibility chart polarity sequence of common-used solvents spe method optimization pesticides and veterinary medicines residues 20 organochlorine pesticide residues in lake water monocrotophos residues in drinking water atrazine in water carbaryl in water antibiotics cefaclor in water oxytetracycline in water sulfonamides antibiotics (sulfadiazine, sulfamethazine, and sulfamethoxazole) in water typical persistent organic pollutants polychlorinated biphenyls in water 2,4,6-trichlorophenol and pentachlorophenol in water pahs in water di(2-ethylhexyl)phthalate (dehp) in water exclusive applications oil and grease in water azo dyes
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请输入计算结果（填写阿拉伯数字），如三加四=7