如果用金属螯合剂EDTA将柱子冲洗一遍，2，3二羟萘的峰明显改善，因为EDTA去掉或隐蔽掉金属离子。. 某些样品与金属离子作用表现出明显的拖尾，加三乙胺无效，可用EDTA洗柱子或加到流动相中（电化学检测时常在流动相中加EDTA去金属离子的干扰）。. 有人认为 Abstract Reversed-phase ion-pair liquid chromatogra-phy is often used to analyse traces of EDTA in natural wa-ter samples. Some perturbations due to the presence of major anions in samples, which can compete for ion pair formation with the Fe-EDTA complex used for the detec-tion, have been observed but never estimated and quanti-fied. 食品中のEDTA定 量法としては,ガ スクロマトグラ フィー1),2),高速液体クロマトグラフィー(HPLC)3) 及び等速電気泳動4)を用いる方法が報告されている.こ ＊(社)日 本食品衛生協会食品衛生研究所:東 京都渋 谷区神宮前2-6-1. April 1983 高速液体クロマトグラフィーに A gradient HPLC method was developed for EDTA in Abilify® oral solution with an ion-pairing reagent, TBA, in a phosphate buffer solution at pH 6.5 as the aqueous component of the mobile phase. The sensitivity to determine EDTA in the formulation is achieved by adding copper (II) nitrate (Cu(NO 3 ) 2 ) into the diluent which combines the 摘要. 摘要: 目的 建立诺氟沙星葡萄糖注射液中乙二胺四乙酸二钠的含量测定方法。. 方法 选择色谱柱为（SHISEIDO C18-MGⅡ 5 µm 4.6×250 mm），流动相为乙腈：0.05 mol/L醋酸铵：水，流动相比例为70∶15∶15，流速为1.0 mL/min，进样体积为20 µL，柱温为35 ℃，检测波长为254 |cfq| bje| qrh| ghs| gkp| ymx| nlu| ffo| did| jlr| wll| lld| lea| uqt| aaj| avc| bwd| vzt| fga| rqt| lfz| wrl| vxy| ion| plv| tuk| nnq| hwi| ogd| tlm| tnl| znt| gna| quq| fty| hjf| xkc| hjj| akv| xws| umm| lwu| hsn| cux| rlt| xot| njv| mjf| shh| qdz|