为定量测定人血浆中叶酸及5-甲基四氢叶酸浓度,建立了利用HPLC-MS/MS联用技术的分析方法.血浆样品在弱光环境下,经SPE萃取处理,以5 mmo1/L甲醇与乙酸铵(pH6.0)(V(甲醇)/V(乙酸铵)=25:75)为流动相,经Waters XTerra MS C18色谱柱初步分离,利用串联质谱多反应离子监测(MRM)方式监测叶酸、5-甲基四氢叶酸和内标的正离子,然后进行定量测定.结果表明:叶酸和5-甲基四氢叶酸的最低定量浓度均为0.5 ng/mL;线性范围为0.5~25 ng/mL,标准曲线相关系数r≥0.99,精密度和准确度均在士15%之内.此法专属、灵敏、准确,可以用于测定人血浆叶酸和5-甲基四氢叶酸的浓度.中国科学引文数据库(CSCD)03145-1492
Inadequate folate status is detrimental to human development. Deficiency has been implicated in cong...
sYNoPsis Human serum folates analysed by bioautography after oral doses of 0-5 mg folic acid (pteroy...
<div><p>Because of minimal data available on folate analysis in dried matrix spots (DMSs), we combin...
AbstractA sensitive method based on high-performance liquid chromatography–tandem mass spectrometry ...
Folic acid is an essential nutrient, and folate deficiency is associated with a variety of disorders...
A sensitive method based on high-performance liquid chromatographyâtandem mass spectrometry (LCâMS/M...
Folic acid is an essential nutrient, and folate deficiency is associated with a variety of disorders...
セミミクロカラム高速液体クロマトグラフ(HPLC)法による簡便で汎用性の高い中鎖脂肪酸(medium-chain fatty acids,MCFAs)類の分析法を確立した.MCFAsは2-(4-hyd...
Comparison of extraction chromatograms of 60 μL (A) and 30 μL (B) of plasma; 5-CH3-H4folate m/z 460....
目的 探讨轻中度高血压患者血清叶酸水平与血浆总同型半胱氨酸水平(tHcy)的相关性.方法 从哈尔滨、沈阳、北京、西安、上海和南京六城市分析455位28~75岁轻中度原发性高血压患者,测定血清叶酸和血浆...
Background: Current clinical methods for folate give different results and cannot measure the variou...
5-methyltetrahydrofolate (5 MeTHF) is the predominant natural form of folate in human blood and most...
The tissue distribution of folate in its numerous coenzyme forms may influence the development of di...
目的 建立测定人血浆中麦考酚酸(免疫抑制剂)含量的HPLC/MS/MS方法 .方法 血浆样品经乙腈沉淀蛋白后,以15 mmol&#183;L-1醋酸铵-甲醇梯度洗脱,用Agilent Zorb...
There are health concerns associated with increased folic acid intake from fortified food and supple...
Inadequate folate status is detrimental to human development. Deficiency has been implicated in cong...
sYNoPsis Human serum folates analysed by bioautography after oral doses of 0-5 mg folic acid (pteroy...
<div><p>Because of minimal data available on folate analysis in dried matrix spots (DMSs), we combin...
AbstractA sensitive method based on high-performance liquid chromatography–tandem mass spectrometry ...
Folic acid is an essential nutrient, and folate deficiency is associated with a variety of disorders...
A sensitive method based on high-performance liquid chromatographyâtandem mass spectrometry (LCâMS/M...
Folic acid is an essential nutrient, and folate deficiency is associated with a variety of disorders...
セミミクロカラム高速液体クロマトグラフ(HPLC)法による簡便で汎用性の高い中鎖脂肪酸(medium-chain fatty acids,MCFAs)類の分析法を確立した.MCFAsは2-(4-hyd...
Comparison of extraction chromatograms of 60 μL (A) and 30 μL (B) of plasma; 5-CH3-H4folate m/z 460....
目的 探讨轻中度高血压患者血清叶酸水平与血浆总同型半胱氨酸水平(tHcy)的相关性.方法 从哈尔滨、沈阳、北京、西安、上海和南京六城市分析455位28~75岁轻中度原发性高血压患者,测定血清叶酸和血浆...
Background: Current clinical methods for folate give different results and cannot measure the variou...
5-methyltetrahydrofolate (5 MeTHF) is the predominant natural form of folate in human blood and most...
The tissue distribution of folate in its numerous coenzyme forms may influence the development of di...
目的 建立测定人血浆中麦考酚酸(免疫抑制剂)含量的HPLC/MS/MS方法 .方法 血浆样品经乙腈沉淀蛋白后,以15 mmol&#183;L-1醋酸铵-甲醇梯度洗脱,用Agilent Zorb...
There are health concerns associated with increased folic acid intake from fortified food and supple...
Inadequate folate status is detrimental to human development. Deficiency has been implicated in cong...
sYNoPsis Human serum folates analysed by bioautography after oral doses of 0-5 mg folic acid (pteroy...
<div><p>Because of minimal data available on folate analysis in dried matrix spots (DMSs), we combin...