Materials and methods: Stock solutions of liquid ASA and SS products were placed in a nursery environment for 24 hours (Trial One). Salicylate concentrations were measured at 0, 8, 16, and 24 hours using high pressure liquid chromatography (HPLC). In Trial Two, SS was metered into the drinking water of four groups of pigs in a commercial nursery, at stock solution concentrations of 2268 mg per ...

*KURAに登録されているコンテンツの利用については,著作権法に規定されている私的使用や引用などの範囲内で行ってください。 *著作権法に規定されている私的使用や引用などの範囲を超える利用を行う場合には,著作権者の許諾を得てください。ただし,著作権者 から著作権等管理事業者(学術著作権協会,日本著作出版権管理システムなど)に権利委託されているコンテンツの利用手続については ,各著作権等管理事業者に確認してください。 Title Determination of 1-nitropyrene in low volume ambient air samples by high-performance liquid chromatography with fluorescence detection Author(s) Ohno, Takanori; Toriba, Akira; Kameda...

The 1,6- and 1,7-regioisomers of dinitro- (1,6-A and 1,7-A) and diamino-substituted perylene bisimides (1,6-B and 1,7-B), and 1-amino-6-nitro- and 1-amino-7-nitroperylene bisimides (1,6-C and 1,7-C) were synthesized. The 1,6-A and 1,7-A regioisomers were successfully separated by high performance liquid chromatography and characterized by 500 MHz 1H-NMR spectroscopy, and subsequently, their red...

A method to estimate trimetazidine (CAS: 13171-25-0) levels in human plasma by means of HPLC with electrochemical detection was developed. Trimethoprim (CAS: 26807-65-8) was used as an internal standard. This method of analysis was fully validated according to the guidelines of the United States Food and Drug Administration, European Medicines Agency and Organization for Economic Co-operation a...

Different molecular species of phospholipids exhibit distinctly different patterns of biologic behavior. In this minireview, the utility of HPLC for analysis of molecular species of phospholipids is illustrated in studies in which it has been demonstrated that molecular species are selectively synthesized, selectively transported, and selectively participate in enzymatic reactions. HPLC appears...

2.2. THEORETICAL BACKGROUND OF HPLC ........................................................................................ 65 2.2.1. Direct measurement of lipophilicity by chromatographic methods ....................68 2.2.2. Measurements of lipophilicity using isocratic chromatographic retention ......70 2.2.3. Measurements of lipophilicity using gradient chromatographic retention ......73 2...

Please direct correspondence to James W. Jorgenson at [email protected]. Ultrahigh-pressure liquid chromatography (UHPLC) is a technique that is experiencing continued growth due to the benefits in separation power and speed of analysis over traditional HPLC. We attempt here to give an overview of some of the advances that have occurred in UHPLC since 2003, from the standpoint of both fund...

Data in this article illustrate representative fucoxanthin chromatograms of a microalga, Chaetoceros calcitrans; a macroalga, Saccharina japonica and; a pure fucoxanthin standard. High performance liquid chromatography (HPLC) eluted fucoxanthin at the 7.008±0.024th min. This data article refers to the research article ''Antioxidant capacities of fucoxanthin-producing algae as influenced by thei...

High-performance liquid chromatography (HPLC) is an essential tool for the purification and characterization of biomacromolecules. This unit presents a thorough discussion of the eight types of HPLC currently used, highlighting equipment and start-up procedures, recommendations for running each type of experiment, and theoretical considerations for the separation of peptides and proteins. This ...

Wheat flour is a commodity with a high risk of Aflatoxins (AFs) contamination. During the bread making there are many processes that can affect the AFs stability. The effect of bread making process using different yeast types on AFs levels was investigated. For this purpose, standards of AFs including B and G were added to flour and then bread loaves were prepared. Three types of commercially a...