(Bromo-2-chloro-1-fluoro-3-met

Determination of Sulfur Amino Acids, Glutathione, and Related Aminothiols in Biological Samples by Gas Chromatography with Flame Photometric Detection

(27 ), and electrochemical detection (28 –32 ) have been reported. Many of these HPLC methods were highly sensitive, but some of these methods lack specificity and require cleanup of the sample to remove the excess reagent and coexisting substances

从减重到健康减重：DIO大小鼠模型怎么选？

。（参考文献：Petersen et al., Nat Rev Drug Discov, 2026）   维通达持续研发与临床高度相关的肥胖、糖尿病、MASH和各种代谢异常大小鼠，满足疾病机制研究、治疗靶点验证、药效测试等全流程临床前需求。针对高脂饮食诱导的肥胖（Diet-induced obesity, DIO）模型，现有两种模型现货供各位科研人员选择：   （1）B6-DIO小鼠模型： 小鼠品系：6周龄雄性C57BL/6J小鼠进行饮食诱导； 饮食方案：DIO组小鼠持续饲喂国产饲料D

桔梗提取物中桔梗皂苷D的反相高效液相色谱检测方法研究

　　【摘要】 目的建立桔梗提取物中桔梗皂苷D的高效液相色谱（HPLC）检测方法。方法采用RP－HPLC法、蒸发光散射检测器（ELSD）测定桔梗皂苷D含量。色谱柱为Agilent ODS（4.6 mm×250 mm，5 μm），流动相为乙腈∶0.5％乙酸溶液＝28∶72，流速1.0 ml/min；检测器为Waters ELSD 2420。结果桔梗皂苷D在0.015 625～0.25 mg/ml范围内与峰面积具有良好的线性关系，r=0.999 6。桔梗皂苷D平均回收率为98.25％，RSD