We compared the results obtained by the LC-MS/MS and the HPLC-EC methods for patient specimens routinely screened for pheochromocytoma (Fig. The data confirmed that the upper limits of the reference intervals were 0.90 nmol/L for NMN and 0.50 nmol/L for MN, which were established with the ...
Roettger VR, Goldfinger MD (1991) HPLC-EC determina- tion of free primary amino acid concentration in cat cisternal cerbrospinal fluid. J Neurosci Methods 39, 263-270.w16x V.R. Roettger, M.D. Goldfinger, HPLC-EC determination of free primary amino acid concentrations in cat cisternal ...
表儿茶素 (epicatechin,EC) 是一种天然植物黄烷醇化合物,是儿茶素的同分异构体,广泛存在于森登、附子、何首乌、鸡血藤、卫矛和药用百合卷丹等中药材中。具有抗氧化、清除自由基、加强新陈代谢、调节免疫和抗肿瘤等功能,同时还有诸多光谱抑菌效果,被认为具有极大的疾病预防潜力 迪信泰检测平台采用高效液相色谱(HPLC)法...
采用HPLC法测定维生素EC片中维生素E的含量ECECC蛋白质的代谢,保持血管完整性;维生素EEC用可发挥协同抗氧化作用。维生素E含量测定主要分析方法有氧化还原滴定(铈量法、GC法[1]、UV法[2]发光抑制法[3][4]HPLC法[5]UV法被《中国药典》2010ECEC片复方制剂的含量测定。氧化还原滴定也曾作为维生素EE的含量测定的相关...
EC HPLC 色谱柱 NUCLEOSIL 100-5 C18,该HPLC色谱柱在原始NUCLEOSIL硅胶的基础上填充了端盖C18(ODS,十八烷基硅烷基)修饰。它是最早用于HPLC的球形二氧化硅之一,最初由MACHEREY-NAGEL于1974年开发。它仅在德国生产,至今仍是全球质量控制中使用最多的HPLC二氧化硅之一。 规格 方法 HPLC,分析 品牌 核苷 基材 NUCLEOSIL -...
The HPLC-EC technique avoids such specificity problems and enables the rapid assay of several peptides in appropriate samples. Recent developments to improve the sensitivity of the HPLC-EC procedure are described, and a comparison presented of the brain and pituitary tissue levels of the neuropeptide...
EC HPLC色谱柱NUCLEODUR 100-5 C18 ec, 标准RP相(110 Å),用于制备型HPLC的日常分析和放大。也可提供宽孔 (300 Å) 用于分离分析柱中的生物分子。这种十八烷基改性基于高纯度NUCLEODUR硅胶。 详细介绍 产品描述 EC HPLC色谱柱NUCLEODUR 100-5 C18 ec, 标准RP相(110 Å),用于制备型HPLC的日常分析...
Voltammetric behavior of ketorolac and its HPLC-EC determination in tablets. Analytical Letters. 1997;30:553-64.Squella A, Lemus I, Sturm C, Vergara J. Voltammetric behavior of ketorolac and its HPLC‑EC determination in tablets. Anal Lett 1997;30:553‑64....
3) HPLC-ECD 高效液相色谱电化学检测 1. To establish a High Performance Liquid Chromatography with electrochemical detection(HPLC-ECD) method for determination of protocatechuic acid in Chuanxiong Chinese medicinal granules and meanwhile test two different kinds of them. 采用反相高效液相色谱电化学检测...
目的 建立高效液相色谱 电化学检测法 (HPLC EC)测定人血浆中地红霉素的活性代谢物红霉素胺浓度.方法 以吲达帕胺为内标 ,血浆经碱化采用二氯甲烷提取 ,色谱柱为KromasilC18,流动相甲醇 :乙腈 :pH 7.8磷酸盐缓冲液为 13:4 0:4 7,流速为 0 .7mL/min ,电化学检测器工作电压为 +0 .9V.结果 红霉素胺血浆浓度...