求这段翻译,非专业绕道。在线等。

发布网友 发布时间：2022-07-11 21:08

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热心网友 时间：2022-07-12 12:33

The preparation of the solution: Weigh containing isopropyl Lung 500mg standardsample is first dissolved with 10ml isopropanol and then cyclohexane was dissolved in100ml, take this solution was 5.0ml, and the internal standard solution 5.0ml with mobile phasegiven dissolved in 50 mL volumetric flask. HPLC, UV detector UV-254nm, column: S: 100,5 μ, 250 × 4.6 (id) mm, mobile phase: n-heptane - chloroform(1% acetic acid) - ethanol = 70:15: 1, the flow rate was 3.0ml / min, retention time: 7.5 minutes of isoproturon, 12 minutes of the internal standard (acetanilide). The solution preparation: Weigh the standards with the sample containing isoproturon 50mg, accurate added 24mg internal standard substance, was dissolved in 50 ml volumetric flask with methylene given. Or with the mobile phase: hexane - isopropanol = 90:10,flow rate was 1.5ml / min, retention time: 9.52 minutes, internal standard (acetanilide, 2.5mg/ml mobile phase) 6.55 minutes, isoproturon

热心网友 时间：2022-07-12 12:33

发文字版的吧青年。

热心网友 时间：2022-07-12 12:34

敢不敢复制下来追问太长了 复制不下来。。

追答The preparation of the solution: take respectively said containing isoproturon 500 mg standard substance and sample, use first 10 ml isopropyl alcohol solution, reoccupy cyclohexane set in 100 ml, take this solution 5.0 ml and internal standard solution 5.0 ml, with mobile phase constant soluble in fifty ml volumetric flask of. High performance liquid chromatography, ultraviolet detector UV - 254 nm, chromatographic column: S: 100, 5 μ, 250 x 4.6 (i.d) mm, mobile phase: n-heptane - chloroform (1 � and � � acid) - ethanol = 70: then, flow rate of 3.0 ml/min, retention time, isoproturon 7.5 minutes, internal standard (acetanilide) 12 minutes. The preparation of the solution: take respectively said containing isoproturon fifty mg standard substance and samples, accurate to join 24 mg internal standard content, with dichloromethane in fifty ml volumetric flask set in. Or with mobile phase: cyclohexane - isopropanol = 90:10, flow rate of 1.5 ml/min, retention time: internal standard (acetanilide, 2.5 mg/ml mobile phase) 6.55 minutes, isoproturon 9.52 minutes