RP-HPLCciprofloxacinOsteochondrodysplasia fetalis is one of adverse reactions of quinolones.To determine quinolones concentration in cartilagines is a important means for investigating the mechanism of the disease.A sensitive and precise RP-HPLC method for determination of ciprofloxacin in foetus cartilag...
"1"means impurity reference method;"2"means main com- ponent selfcompared with correction factor;"-"means not detected 3 讨论 本文建立的 RP-HPLC 加校正因子的主成分自身对照法可 同时测定盐酸多奈哌齐口腔崩解片中 7 种特殊杂质的含量,无 需长期购买杂质对照品,也消除了杂质相对于主成分响应因 子不...
HPLCarethemethylalcohol一0.04%phosphoricacid(40:60/v:V)forflows,andsamedensityeluted under360nm.Undertheseconditions,theflavonescontentoftheosmundis0.798mg·g～.Theaccuraryis veryhighbyRP-HPLCmethod,andthismeanshasbetterreproducibility,butRP—HPLCmethodneedsexpen— ...
Method validation and reproducibility have been determined by means of two different chromatographic systems. Variation of key parameters demonstrated that a decrease in pH (<3.8) provides a good peak shape, at the same time enhances the insulin retention. An increase in temperature, decreased ...
Quantitative analysis of thiamethoxam was conducted using a C18 HPLC colum, acetonitrile/water(20/80)as the mobile phase, and determination at 250 nm. Standard deviation was 0.0012. Coefficient of variation was 0.41,linear regression coefficient was 0.9998, average recovery percetage was 99.85%.关键...
RP-HPLC和MALDI-TOF质谱技术研究茶多酚锰的组成、结构及稳定性 6) RP-TLC RP-TLC 1. The separation conditions of RP-HPLC for ferrocene sulfonates have been determined by means ofRP-TLCusing methyl alcohol-water as a mobile phase. 以甲醇-水为流动相,用RP-TLC确定了二茂铁磺酸酯RP-HPLC的分离条件。
Objective:To establish an HPLC method for the determination of karanjin content in Pongamia Pinnata by RP-HPLC.Methods:A Hypersil-C18ODS 2(4.6 mm×150 mm,5 μm)column was used with a mobile phase of 0.1% methanoic acid solution(pH was adjusted to 3.0 with triethylamine)-acetonitrile(60∶40...
目的 利用RP-HPLC-ELSD技术建立不同菌株茯苓三萜的指纹图谱,为评价不同菌株培育茯苓药材的质量品质提供理论依据,以期规范培育茯苓的菌株,提高茯苓资源品质。方法 色谱柱为Kromasil 100-5 C18柱(250 mm×4.6 mm,5 μm);流动相为0.2%甲酸水溶液(A)-乙腈(B),采用梯度洗脱法;体积流量为1.0 mL/min;柱温为30 ℃...
Modeling the retention of neutral compounds in gradient elution RP-HPLC by means of polarity parameter models A three-parameter expression, which was already employed before for the prediction of the retention time in gradient mode in reversed-phase high-performanc... A Te?Llez,Roses, Marti,E ...
42中国野生植物资源第20卷第5期大黄药材、浸膏及其清胃颗粒剂质量的RP—HPLC分析范国荣1张正行2安登魁2( 1.第二军医大学附属长海医院药学部上海200433;2.中国药科大学药物分析教研室南京210009)摘要建立适合大黄药材、大黄浸膏及清胃颗粒荆过程分析与质量控制的反相高效液相色谱方法。采用YwG一0Ds l CIItm( 200× 4.0...