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Both reversed-phase HPLC and MEKC techniques succeeded in resolving the tested standard mixtures of organic ,components, of smokeless powders. Although the sequence of elution of the different analytes was slightly different between HPLC and MEKC, a statistical ,analysis, based on the Spearman's rank correlation test showed that the two separation patterns were highly correlated.

The NMR relaxation signals from complex products such as ice cream are hard to interpret because of the multiexponential behavior of the relaxation signal and the difficulty of attributing the NMR relaxation ,components, to specific molecule fractions. An attribution of the NMR relaxation parameters is proposed, however, based on an approach that combines quantitative ,analysis, of the spin−spin ...

e-,liquid, and in the particulate phase generated by the electronic smoking devices. • ,Analysis of TSNAs in nicotine, used for preparing e -,liquids, is important, and because the potential levels are expected to be very low, a very sensitive method for this ,analysis, is necessary. 2016_TSRC38_Moldoveanu.pdf TSRC2016(70) - Document not peer-reviewed

In order to explore the applications ,of liquid, chromatography-mass spectrometry (LC-MS) technology in the rapid identification of ,components, of Chinese herbal medicines and natural products, reference flavones were used as precursors, and the stems and leaves of medicinal plant Ranunculus ternatus Thunb. were used as the objects.

This study aims to determine chemical ,components of liquid, smoke obtained from pyrolysis from various raw materials (coconut fiber, coconut shells, cinnamon) with different pyrolysis levels on temperature of 100±10°C; 200±10°C; 300±10°C; and

METHAMPHETAMINE on Wipes by Liquid Chromatography/Mass Spectrometry, 9111 C 6 H 5 ·CH 2 ·CH(CH 3)·NH·CH 3 . MW: 149.2 CAS: 537-46-2 RTECS: SH4910000. METHOD: 9111, Issue 1 EVALUATION: Partial Issue 1: 17 October 2011. U.S. regulatory OELs. OSHA or MSHA: None for surfaces. Other published OELs and guidelines. ACGIH, AIHA or NIOSH: None for ...