نتایج جستجو برای: borate buffer

تعداد نتایج: 45822  

Glutathione (GSH) is one of the most important antioxidants that plays an essential role in detoxification of reactive oxygen species (ROS) which oxidizes to glutathione disulfide (GSSG). Paraquat (PQ), awidely used herbicide, causes pulmonary injury with the productionof ROS. Excessive ROS accumulation as a consequence of PQ exposure are frequently targeted by GSH thereby oxidative stress lead...

Glutathione (GSH) is one of the most important antioxidants that plays an essential role in detoxification of reactive oxygen species (ROS) which oxidizes to glutathione disulfide (GSSG). Paraquat (PQ), awidely used herbicide, causes pulmonary injury with the productionof ROS. Excessive ROS accumulation as a consequence of PQ exposure are frequently targeted by GSH thereby oxidative stress lead...

Journal: :Isij International 2023

Specimens with different microstructures (bainite, as-quenched martensite, and tempered martensite) were fabricated using a Fe-0.4C-1.5Si-2Mn steel sheet, the pitting corrosion resistances of these compared. Retained austenite was barely detected in X-ray diffraction analysis. The Vickers hardness values ordered as (high) martensite > ≈ bainite 325°C-austempered specimen 425°C-austempered (low)...

Journal: :Materials and Corrosion-werkstoffe Und Korrosion 2023

Copper is the intended canister material for disposal of spent nuclear fuel in Sweden. At repository depth groundwater may contain dissolved sulfide. The main goal this work to study tendency stress corrosion copper sulfide solutions and examine influence various experimental parameters on corrosion. Slow strain rate testing was performed test rods with 1.0 mM pH kept near neutral phosphate or ...

Journal: :Clinical chemistry 2002
Markus Herrmann Daniela Klitscher Thomas Georg Johannes Frank Ingo Marzi Wolfgang Herrmann

that both gabapentin and the internal standard are recovered from plasma in a 90 –98% yield after extraction with 1-mL C 18 extraction columns. The recovery of gaba-pentin is drastically reduced when the sample passes through the C 18 sorbent at a relatively fast rate. However, endogenous amino compounds present in plasma are more polar than gabapentin and are not retained by C 18 sorbent even ...

Journal: :Molecules 2012
Chien-Yuan Kuo Shwu-Huey Wang Chunchi Lin Sylvain Kuo-Shiang Liao Wei-Ting Hung Jim-Min Fang Wen-Bin Yang

Neutral and acidic monosaccharide components in Ganoderma lucidum polysaccharide are readily labeled with 2,3-naphthalenediamine, and the resulting saccharide-naphthimidazole (NAIM) derivatives are quantified by capillary electrophoresis (CE) in borate buffer. Using sulfated-α-cyclodextrin as the chiral selector, enantiomers of monosaccharide-NAIMs are resolved on CE in phosphate buffer, allowi...

Journal: :Journal of chromatography. A 1996
M J van der Schans J C Reijenga F M Everaerts

Solutions of histamine and methacholine bromide in different matrices for diagnostic purposes were analyzed for stability and quality control using capillary electrophoresis. Histamine (2,[4-imidazolyl]ethylamine) [CAS No. 51-45-6] was determined using a 0.1 M Tris-borate buffer of pH 8.3 with 5.10(-5) M cetyltrimethylammonium bromide (CTAB) and 0.005% poly(vinyl alcohol) (PVA) and detected at ...

Journal: :Analytical chemistry 2000
S L McIntosh B K Nunnally A R Nesbit T G Deligeorgiev N I Gadjev L B McGown

This paper describes the first use of frequency-domain fluorescence lifetime for multiplex detection of DNA restriction fragments in capillary electrophoresis (CE). The fragments were labeled with monomeric intercalating dyes that can be excited by either the 488- or 514-nm line of an argon ion laser and have lifetimes in the range of 0.5-2.5 ns. We were able to achieve multiplex lifetime detec...

Journal: :Journal of chromatographic science 2007
Toshihiro Kitahashi Itaru Furuta

A method is developed for measuring the concentration of micafungin, an echinocandin antifungal agent, in serum, using capillary zone electrophoresis. With a 0.1M borate buffer (pH 10.0) as the run buffer, detection is carried out at 200 nm. Pretreatment is performed by adding acetonitrile to serum (1:2) for deproteinization, allowing the supernatant fluid to be taken for measurement. The detec...

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