获得0积分，您同时完成了每日任务，有额外的积分奖励，请前往APP领取
立即前往
原文由 lvxiumei(lvxiumei) 发表:
因化学原料药出口，需要依照国外药典检测组分和杂质，相关仪器要求如下，希望有能力的检测单位留下联系方式，或者和我联系0755-26514276，QQ34498139，谢谢大家！
Column:
— size: l =0.25m, Ф=4.6mm,
— stationary phase: styrene-divinylbenzene copolymer R (8 μm) with a pore size of 100 nm,
— temperature: 55°C
Post-column solution: a carbonate-free sodium hydroxide solution diluted 1 to 25, previously degassed, which is added pulse-less to the column effluent using a 375 μl polymeric mixing coil.
Detection: pulsed amperometric detector or equivalent with a gold indicator electrode, a silver-silver chloride reference electrode, and a stainless steel auxiliary electrode which is the cell body, held at respectively + 0.05 V detection, + 0.75 V oxidation and 0.15 V reduction potentials, with pulse durations according to the instrument used.
我的社区
签到
迎国庆送壕礼！十月发帖抢大疆云台
【官方邀请】高效液相色谱使用情况有奖调研
喜迎国庆！第十七届原创大赛超级原创日参赛奖励翻倍
丹纳赫四十周年寄语征集领大礼包
