Sub-femtomole determination of phenylthiohydantoin-amino acids : capillary electrophoresis and thermooptical detection

Sub-femtomole determination of phenylthiohydantoin-amino acids : capillary electrophoresis and thermooptical detection
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苯硫基乙内酰脲氨基酸的亚飞摩尔测定:毛细管电泳和热光检测

DOI:
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发表时间:
1992
期刊:
影响因子:
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通讯作者:
N. Dovichi
N. Dovichi
中科院分区:
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文献类型:
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作者:
K. Waldron;N. Dovichi

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用胶束毛细管电泳在13.5 min内分离了20个苯基硫代氢酰氨基酸(PTH-AA)。采用低能氟化氪激光器进行热光学吸光度检测器,在0.6 nl的体积内注入pth -甘氨酸,产生9×10 -7 M的典型检出限(3σ),对应于注入到毛细管上的pth -甘氨酸为0.5 fmol (100 fg)。检测限约为3个数量级优于传统的液相色谱测定
Twenty phenylthiohydantoin-amino acide (PTH-AA) are separated by micellar capillary electrophoresis in 13.5 min. A low-energy krypton fluoride laser ise used in a thermooptical absorbance detector to produce typical detection limits (3σ) of 9×10 -7 M PTH-glycine injected in a 0.6-nL volume, corresponding to 0.5 fmol (100 fg) of PTH-glycine injected onto the capillary. Detection limits are roughly 3 orders of magnitude superior conventional liquid chromatographic determinations
使用胶束形成化合物和环糊精作为添加剂对肽进行毛细管电泳分离。
DOI: 10.1016/0021-9673(90)85147-n
发表时间: 1990
期刊: Journal of chromatography
影响因子: --
作者:
Liu,J;Cobb,KA;Novotny,M
通讯作者: Novotny,M