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You searched for: Publication year rev 7985-2015 Remove constraint Publication year rev: 7985-2015 Subject ionization Remove constraint Subject: ionization Subject term caffeine Remove constraint Subject term: caffeine
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1. Corrigendum to “Sorption/desorption of non-hydrophobic and ionisable pharmaceutical and personal care products from reclaimed water onto/from a natural sediment” Sci Total Environ 472 (2014) 273–281

Author:
Virtudes Martínez-Hernández; Raffaella Meffe; Sonia Herrera; Elena Arranz; Irene de Bustamante
Source:
Science of the total environment 2015 v.505 pp. 1232-1233
ISSN:
0048-9697
Subject:
acetaminophen; caffeine; carbon; desorption; inorganic ions; ionization; organic matter; personal care products; rain; sandy loam soils; sediments; sulfamethoxazole
Abstract:
... In the present work, the sorption of pharmaceutical and personal care products (PPCPs) (acetaminophen, atenolol, carbamazepine, caffeine, naproxen and sulphamethoxazole) onto the natural organic matter (NOM) and the inorganic surfaces of a natural sandy loam sediment was quantified separately. The quantification was based on the PPCP charge, their degree of ionisation, their octanol-water partitio ...
DOI:
10.1016/j.scitotenv.2014.10.104

2. Drug cross-contamination of latent fingermarks during routine powder dusting detected by SALDI TOF MS

Author:
Latha Sundar; Frederick Rowell
Source:
Analytical methods 2015 v.7 no.9 pp. 3757-3763
ISSN:
1759-9679
Subject:
acetaminophen; aspirin; brushes; caffeine; cocaine; cross contamination; desorption; dusting; illicit drugs; ionization; magnetism; mass spectrometry; methadone; powders; squirrels; therapeutics
Abstract:
... The process of dusting powders over latent fingermarks was shown to transfer drug contact residues between adjacent marks. This was seen for marks contaminated after contact with two drugs of abuse (cocaine and methadone) and three therapeutic drugs (caffeine, aspirin and paracetamol). The powders used were a commercial black powder, and α-cyano-4-hydroxycinnamic acid both of which also act as ion ...
DOI:
10.1039/c5ay00598a

3. Microwave induced plasma desorption ionization (MIPDI) mass spectrometry for qualitative and quantitative analysis of preservatives in cosmetics

Author:
Zhongjun Zhao; Yixiang Duan
Source:
RSC advances 2015 v.5 no.51 pp. 40636-40646
ISSN:
2046-2069
Subject:
caffeine; desorption; detection limit; ionization; liquids; mass spectrometry; preservatives; quantitative analysis; screening; standard deviation; sunscreens
Abstract:
... Ambient ion sources for mass spectrometry have been frequently reported in the past 10 years. The most attractive features of these ion sources are that they are fast and an easy way to analyze various samples. The microwave induced plasma desorption ionization source, the MIPDI source, is one among them. In this study, the qualitative and quantitative behavior of the MIPDI source has been demonst ...
DOI:
10.1039/c5ra05137a

4. Occurrence and distribution of phthalate esters and pharmaceuticals in Taiwan river sediments

Author:
Gordon C. C. Yang; Chih-Lung Wang; Yu-Han Chiu
Source:
Journal of soils and sediments 2015 v.15 no.1 pp. 198-210
ISSN:
1439-0108
Subject:
acetaminophen; animal husbandry; caffeine; ciprofloxacin; food industry; humans; ionization; lincomycin; liquid chromatography; monitoring; norfloxacin; personal care products; phthalates; rivers; sediments; sulfamethoxazole; sulfathiazole; tandem mass spectrometry; temporal variation; wet season; Taiwan
Abstract:
... PURPOSE: Phthalate esters (PAEs), pharmaceuticals, and personal care products (PPCPs) are used in industry, biosciences, agriculture, animal husbandry, food industry, and by humans. The aim of this study was to understand the occurrence, spatial distribution, and temporal variation of six phthalate esters and pharmaceuticals in river sediments in Taiwan. MATERIALS AND METHODS: Surface sediments we ...
DOI:
10.1007/s11368-014-1003-4

5. Miniature Flow-Through Low-Temperature Plasma Ionization Source for Ambient Ionization of Gases and Aerosols

Author:
Spencer Sandra E.; Santiago Brandon G.; Glish Gary L.
Source:
Analytical chemistry 2015 v.87 no.23 pp. 11887-11892
ISSN:
1520-6882
Subject:
aerosols; caffeine; cellulose; gases; ionization; ions; pyrolysis
Abstract:
... The design and operation of an inexpensive, miniature low-temperature plasma ion source is detailed. The miniature low-temperature plasma ion source is operated in a “flow-through” configuration, wherein the gaseous or aerosolized analyte, caffeine or pyrolyzed ethyl cellulose, in a carrier gas is used as the plasma gas. In this flow-through configuration, the sensitivity for the caffeine standard ...
DOI:
10.1021/acs.analchem.5b03447