نتایج جستجو برای: hplc dad esi msms

تعداد نتایج: 43203  

2014
Fatma Demirkaya-Miloglu Yucel Kadioglu Onur Senol

was performed in both direct analysis of MSB and analysis of MN by converting MSB to MN with sodium carbonate. GC-FID method was carried out on the HP-5 capillary column GC-FID and HPLC-DAD methods were developed for determination of menadione (MN) and menadione sodium bisulphite (MSB). By means of each method, quantitative analysis of MSB in commercial pharmaceutical using nitrogen gas. HPLC-D...

Journal: :Horticulturae 2021

Polyamines (PAs) are molecules affecting several physiological characteristics in all living organisms with cell protective effects, thereby impacting plant and human health. Here, we used HPLC-DAD-ESI-MS to evaluate the content composition of PAs eight tomato genotypes over their maturation period, related other quality traits possible implications for The genotype, maturity stage interactions...

Journal: :Food additives and contaminants 2004
C M Maragos

Moniliformin is a mycotoxin produced by certain fungi pathogenic to maize. It is capable of causing disease in domestic animals, possibly through inhibition of pyruvate dehydrogenase. Testing for MON commonly involves extraction of maize, isolation of moniliformin using solid-phase extraction columns and detection with high-performance liquid chromatography (HPLC) or gas chromatography. A capil...

Journal: :Molecules 2011
Li-Chun Zhao Wei Li Yu-Fang He Xiao-Hua Li Zi Wang Wen-Cong Liu Yi-Nan Zheng Jian Liang

In the present study, we developed a liquid chromatography-diode array detector-electrospray ionization/mass spectrometric (LC-DAD-ESI/MS) method for analysis of saikosaponins in Bupleurum falcatum. The LC method employed a ZORBAX SB-Aq analytical column (150 x 4.6 mm i.d., 5 μm) at a flow rate of 0.8 mL/min coupled with a diode array detector at 204 nm. A step gradient of acetonitrile-water (v...

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