Journal ArticleDOI
Simultaneous determination of methamphetamine and amphetamine in human urine using pipette tip solid-phase extraction and gas chromatography–mass spectrometry
Takeshi Kumazawa,Chika Hasegawa,Xiao-Pen Lee,Kenji Hara,Hiroshi Seno,Osamu Suzuki,Keizo Sato +6 more
Reads0
Chats0
TLDR
Regression equations for methamphetamine and amphetamine showed excellent linearity in the range of 0.25-200 ng/0.5 ml, and intra- and inter-day coefficients of variations for both stimulants were not greater than 10.8%.About:
This article is published in Journal of Pharmaceutical and Biomedical Analysis.The article was published on 2007-06-28. It has received 92 citations till now. The article focuses on the topics: Solid phase extraction.read more
Citations
More filters
Journal ArticleDOI
A review of current trends and advances in modern bio-analytical methods: chromatography and sample preparation.
Lucie Nováková,Hana Vlčková +1 more
TL;DR: UHPLC has recently become a wide-spread analytical technique in many laboratories which focus on fast and sensitive bio-analytical assays and the key advantages are the increased speed of analysis, higher separation efficiency and resolution, higher sensitivity and much lower solvent consumption as compared to other analytical approaches.
Journal ArticleDOI
Past, Present, and Future of Solid Phase Extraction: A Review
Bogusław Buszewski,M. Szultka +1 more
TL;DR: Extraction techniques are dominant, especially those based on the processes running on the phase such as liquid-liquid and/or liquid-solid as mentioned in this paper, due to the reproducibility of data, precision, relatively low cost of the appropriate analysis, simplicity of the determination, and the possibility of direct combination of those techniques with other methods (both on-line and off-line).
Journal ArticleDOI
Recent developments and applications of microextraction techniques in drug analysis
TL;DR: This review focuses primarily on microextraction techniques developed over the last decade, and presents a summary of the characteristics of various approaches in drug analysis.
Journal ArticleDOI
Direct analysis of liquid samples by desorption electrospray ionization-mass spectrometry (DESI-MS)
Zhixin Miao,Hao Chen +1 more
TL;DR: Results suggest that a charged droplet pick-up mechanism is responsible for desorption and ionization of liquid samples by DESI, which could have potentials in bioanalytical and forensic analysis.
Journal ArticleDOI
A new approach for cytokinin isolation from Arabidopsis tissues using miniaturized purification: pipette tip solid-phase extraction
Jana Svačinová,Ondřej Novák,Lenka Plačková,René Lenobel,Josef Holík,Miroslav Strnad,Karel Doležal +6 more
TL;DR: The combination of microextraction with one-step high-throughput purification provides fast, effective and cheap sample preparation prior to qualitative and quantitative measurements.
References
More filters
Book
Clarke's analysis of drugs and poisons
TL;DR: Clarke's analysis of drugs and poisons , Clarke's Analysis of Drugs and poisons, کتابخانه دیجیتال جندی اهواز
Journal Article
The need for speed: an update on methamphetamine addiction.
Alasdair M. Barr,William J. Panenka,G. William MacEwan,Allen E. Thornton,Donna J. Lang,William G. Honer,Tania Lecomte +6 more
TL;DR: This work provides a comprehensive description of the factors relating to MA use and the major health-related consequences, with an emphasis on MA-induced psychosis, and hopes that increased knowledge of MA abuse will provide the basis for future treatment strategies.
Journal ArticleDOI
Development of a monolithic silica extraction tip for the analysis of proteins.
Shota Miyazaki,Kei Morisato,Norio Ishizuka,Hiroyoshi Minakuchi,Yukihiro Shintani,Masahiro Furuno,Kazuki Nakanishi +6 more
TL;DR: Newly developed solid-phase extraction (SPE) tool with pipette-tip shape for purification of bio-samples of various characteristics, utilizing monolithic silica gel as medium, which is much effective and suitable for protein analysis.
Journal ArticleDOI
Duration of Detectable Methamphetamine and Amphetamine Excretion in Urine after Controlled Oral Administration of Methamphetamine to Humans
TL;DR: The urinary excretion of MAMP after oral ingestion was determined and the effect of using lower cutoffs on detection of exposure was examined, finding that at the lower cutoff, initial detection times are earlier, detection windows are longer, and confirmation rates are increased.
Journal ArticleDOI
Simultaneous determination of ten antihistamine drugs in human plasma using pipette tip solid‐phase extraction and gas chromatography/mass spectrometry
Chika Hasegawa,Takeshi Kumazawa,Xiao-Pen Lee,Masaya Fujishiro,Ayako Kuriki,Akemi Marumo,Hiroshi Seno,Keizo Sato +7 more
TL;DR: The data obtained from determination of diphenhydramine and chlorpheniramine in human plasma after oral administration of the drugs are presented and the regression equations for the ten antihistamines showed excellent linearity.