Results 41 to 50 of about 23,384,570 (255)

Analysis of aminophospholipid molecular species by high performance liquid chromatography.

Journal of Lipid Research, 1989
A new method is described for the separation of individual molecular species of the aminophospholipids, phosphatidylethanolamine and phosphatidylserine. Trinitrobenzene-sulfonic acid was used to derivatize both aminophospholipids and the derivatives were
F Hullin, H Y Kim, N Salem, Jr
doaj   +1 more source

ESI-MS fragmentation pathways of some 1,2,4-triazole-3-thiones, the intermediate compounds in the synthesis of active pharmaceutical ingredients

Журнал органічної та фармацевтичної хімії, 2020
Aim. To determine the fragmentation pathways of eight 1,2,4-triazole-3-thiones, which are intermediate products in the synthesis of active pharmaceutical ingredients of potential and registered pharmaceutical formulations. Results and discussion. HPLC-
Borys O. Varynskyi, Andriy G. Kaplaushenko   +1 more
doaj   +1 more source

High performance liquid chromatography conditions.

, 2019
High performance liquid chromatography conditions.
Ritsuko Arai (6278018), Tatsuma Kishimoto (6278009), Shiori Hino (6278015), Takahiro Minami (6278006), Satoru Yamagami (42035), Isana Nakajima (6278012), Atsuki Fukushima (126943), Waka Ishida (126934), Toru Matsunaga (6278021)   +8 more
core   +1 more source

Liquid chromatography-tandem mass spectrometry - Application in the clinical laboratory [PDF]

, 2003
This review provides a concise survey of liquid chromatography tandem mass spectrometry (LCTMS) as an emerging technology in clinical chemistry. The combination of two mass spectrometers with an interposed collision cell characterizes LCTMS as an ...
Michael Vogeser, Vogeser, Michael
core   +2 more sources

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Studi Degradasi Sediaan Infus Ciprofloksasin Menggunakan High Performance Liquid Chromatography

Jurnal Farmasi Sains dan Praktis, 2016
Penelitian ini menggambarkan perlakuan degradasi infus ciprofloksasin yang dikondisikan dengan pemanasan, penambahan asam dan basa. Produk degradasi dianalisis menggunaan perangkat HPLC merk Waters e2695 Separations, kolom SunFireTM C18, detektor PDA ...
Bekti Nugraheni
doaj   +1 more source

Development and validation of high-performance liquid chromatographic method for determination of ofloxacin and lomefloxacin in human plasma [PDF]

Journal of the Serbian Chemical Society, 2005
Ahigh-performance liquid chromatographicmethod for the determination of ofloxacin and lomefloxacin in human plasma has been developed and validated. The effect of organic modifiers on the retention of the investigated drugs was investigated.
Zendelovska Dragica, Stafilov Trajče
doaj   +1 more source

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

Molecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis, Jack V. Mills, Wojciech Niedzwiedz, Valentine M. Macaulay   +3 more
wiley   +1 more source

High-performance liquid chromatographic separation of metal carbonyl complexes substituted with bridging and chelating 1,1'-bis(diphenylphosphino)ferrocene

, 1991
The high-performance liquid chromatography of metal carbonyl complexes including those containing the 1,1'-bis(diphenylphosphino)ferrocene ligand is reported. Separations were performed on a column packed with silica bonded with polar amino-cyano groups.
Phang, L. T., Hor, T. S A, Lee, H. K., Koo, L. K.   +3 more
core   +1 more source