Results 221 to 230 of about 59,227 (260)

A NOVEL PACKING MATERIAL FOR RP-HPLC

Journal of Liquid Chromatography & Related Technologies, 2000
A simple, practical, and economical procedure had been developed to prepare novel C18 ether-bond reversed phase packing. A soft and long C18 alkyl chain was coupled onto silica (Sinopak-S, particle size d = 5μm, pore diameter Dp=11nm, and surface area s=170m2/g) with γ-glycidoxypropyltrimethoxysilane as a coupling agent.
Yu Xin, Zhao Rui, Liu Guoquan
openaire   +1 more source

RP-HPLC of some metal phthalocyanines

Mikrochimica Acta, 1998
The retention parameters of phthalocyanine, tetra-4-t-butylphthalocyanine and the latter's complexes with zinc, copper, rhodium and lutetium, as well as the copper complex of tetra-4-t-butyltetrabenzotriazaporphyrin were determined with μBondapak C18 sorbent.
Galina D. Brykina, Mariya I. Uvarova, Oleg A. Shpigun   +2 more
openaire   +1 more source

[RP-HPLC characteristics of dragon's blood].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2008
To study the fingerprint of dragon's blood resina draconis by high performance liquid chromatography.The samples are extracted with methanol and separated on a Eclipse XDB-C18 column (4.6 mm x 150 mm, 5 microm) with the mobile phase of acetonitrile-H2O in gradient mode, and the flow rate was 1.0 mL x min(-1), the detection wavelength was 275 nm and the
Xiu-Li, Gao, Qian, Jiang, Peng-Jiao, Wang, Min, Zhang   +3 more
openaire   +1 more source

Comparison of ultraviolet and refractive index detections in the HPLC analysis of sugars

Food Chemistry, 2021
Iqbal Jalaludin, Jeongkwon Kim
exaly  

Chaotropic Effects in RP-HPLC

2005
R, LoBrutto, Y V, Kazakevich
openaire   +2 more sources

[RP-HPLC characteristics of Panax notoginseng].

Yao xue xue bao = Acta pharmaceutica Sinica, 2008
To develop the chemical characteristics of Panax notoginseng in order to control its quality.The samples was extracted using pressurized liquid extraction (PLE) and analyzed by HPLC-DAD. The data were evaluated using the "similarity evaluation system for chromatographic fingerprint of TCM" software (version 2004A).The chromatographic characteristics of
Jian-bo, Wan, Shao-ping, Li, Yi-tao, Wang   +2 more
openaire   +1 more source

[Determination of gelsemium alkaloids by RP-HPLC].

Yao xue xue bao = Acta pharmaceutica Sinica, 1994
Gelsemium elegans Benth is a kind of traditional Chinese medicine, eight alkaloids have been isolated from this herb. In recent years, an HPLC method for the separation and determination of five of these alkaloids, ie. gelsemium A (G), koumine (F), kumantenidine (D), kumantenine (B) and kumantenmine (A) is described, dichroine being used as the ...
S R, Luo, T, Li, J S, Yang
openaire   +1 more source

Simultaneous determination of 20 phenolic compounds in propolis by HPLC-UV and HPLC-MS/MS

Journal of Food Composition and Analysis, 2023
Adan Li
exaly  

[Determination of bendazac lysine by RP-HPLC].

Hua xi yi ke da xue xue bao = Journal of West China University of Medical Sciences = Huaxi yike daxue xuebao, 1993
Bendazac (BD) was separated on a CLC-ODS column, 150 x 6 mm id (Shimadzu), using methanol acetic acid 0.1 mol/L (67:33) as the mobile phase. The flow rate was 1.0 ml/min and the detection wavelength, 254 nm. The detection limit of BD was 0.1 ng (R/N, 3:1), which was determined by the peak area measurement using an external standard method.
C, Wu, R, Chao, P, Ma, X, Gao
openaire   +1 more source

Highly Selective RP/HPLC

2009
Makoto Takafuji, Atsuomi Shundo, Shoji Nagaoka, Hirotaka Ihara   +3 more
openaire   +1 more source