Detection of Carfentanil by LC-MS-MS and Reports of Associated Fatalities in the USA.

abstract：:Four kinds of volatile anesthetics (halothane, enflurane, isoflurane, and sevoflurane) that were dissolved in 3 microL of experimental plasma samples were examined by the pulse-heating gas chromatographic-mass spectrometric method, and this approach was found to be reliable for qualitative and quantitative analysis. T...

journal_title：Journal of analytical toxicology

authors： Saito K,Takayasu T,Nishigami J,Kondo T,Ohtsuji M,Lin Z,Ohshima T

更新日期：1995-03-01 00:00:00

abstract：:A 5-mg dose of cocaine free base applied to the volar forearm skin surface of a volunteer resulted in a maximal urinary benzoylecgonine concentration of 55 ng/mL at 48 h, using discrete urine specimens. A total of 58 micrograms of benzoylecgonine, representing 1.2% of the dose, was excreted in the 96-h urine. An ident...

journal_title：Journal of analytical toxicology

authors： Baselt RC,Chang JY,Yoshikawa DM

更新日期：1990-11-01 00:00:00

abstract：:A gas chromatographic/mass spectrometric (GC/MS) method for the rapid quantitation of atropine (AT) in blood is presented. A 2.0-mL blood specimen containing deuterated N-methyl-atropine as the internal standard was alkaline-hydrolyzed to convert atropine to tropine. The tropine was extracted by organic solvent which ...

journal_title：Journal of analytical toxicology

authors： Saady JJ,Poklis A

更新日期：1989-09-01 00:00:00

abstract：:We describe an assay for measuring cocaine and benzoylecgonine in meconium of infants born to mothers suspected of using cocaine during their pregnancy. The assay involves the use of fluorescence polarization immunoassay (FPIA) to screen for benzoylecgonine in a methanolic extract of the meconium. The FPIA is sensitiv...

journal_title：Journal of analytical toxicology

authors： Clark GD,Rosenzweig IB,Raisys V,Callahan CM,Grant TM,Streissguth AP

更新日期：1992-07-01 00:00:00

abstract：:Endogenous γ-hydroxybutyric acid (GHB) concentrations in blood and urine are well documented, but there are very little data on natural levels in saliva, a biological matrix increasingly used for drug testing. We measured endogenous GHB concentrations in 120 unpaid volunteers who also provided anonymous epidemiologica...

journal_title：Journal of analytical toxicology

authors： De Paoli G,Walker KM,Pounder DJ

更新日期：2011-04-01 00:00:00

abstract：:A rapid and simple liquid chromatography tandem mass spectrometry method was developed and validated for the simultaneous determination of L-ephedrine, pseudoephedrine, and caffeine in male Fisher-344 rat plasma at nanogram-per-milliliter concentrations for use in support of toxicology studies. Only 25 μL of plasma is...

journal_title：Journal of analytical toxicology

authors： Cooper SD,Fletcher BL,Silinski MA,Brown SS,Lodge JW,Fernando RA,Collins BJ

更新日期：2011-07-01 00:00:00

abstract：:Cyclopropylfentanyl is a fentanyl analog implicated in 78 deaths in Europe and over 100 deaths in the United States, but toxicological information including metabolism data about this drug is scarce. The aim of this study was to provide the exact structure of abundant and unique metabolites of cyclopropylfentanyl alon...

journal_title：Journal of analytical toxicology

authors： Vikingsson S,Rautio T,Wallgren J,Åstrand A,Watanabe S,Dahlén J,Wohlfarth A,Konradsson P,Wu X,Kronstrand R,Gréen H

更新日期：2019-09-10 00:00:00

abstract：:In December 2019, unusual cases of acute renal failure with neurological changes were observed in the State of Minas Gerais, Brazil. Criminal investigations indicated cases of intoxication after consumption of beers contaminated with diethylene glycol (DEG). The elimination of DEG by the body is fast, but its metaboli...

journal_title：Journal of analytical toxicology

authors： Goulart COL,Bordoni LS,Nascentes CC,Costa LM

更新日期：2020-12-03 00:00:00

abstract：:We describe herewith the case of a patient presenting to the emergency department for worsening ear-nose-throat symptoms. As chemsex was evocated by the family, patient's serum was submitted to a new psychoactive substances screening. After a simple liquid liquid extraction, serum was injected on a high-resolution mas...

journal_title：Journal of analytical toxicology

authors： Deville M,Dubois N,Charlier C

更新日期：2020-11-04 00:00:00

abstract：:The dramatic rise in maternal drug abuse and the incidence of positive drug findings during neonatal testing has increased the need for prenatal toxicological testing for drugs of abuse. Human amniotic fluid samples collected after 13-39 weeks of pregnancy were screened for cocaine metabolite (benzoylecgonine) by fluo...

journal_title：Journal of analytical toxicology

authors： Ripple MG,Goldberger BA,Caplan YH,Blitzer MG,Schwartz S

更新日期：1992-09-01 00:00:00

abstract：:A method for analyzing urine for the presence of basic drugs and their metabolites using two fused silica capillary columns is described along with operating conditions and column characteristics. Urine extracts were injected into a gas chromatograph equipped with nitrogen phosphorous detectors (GC/NPD) and two capill...

journal_title：Journal of analytical toxicology

authors： Hime GW,Bednarczyk LR

更新日期：1982-09-01 00:00:00

abstract：:Solid-phase extraction (SPE) and a one-step derivatization are combined with gas chromatography-negative ion chemical ionization-mass spectrometry to simplify a previously reported method for the determination of naltrexone and its metabolite, 6-beta-naltrexol, in human plasma. Deuterated isotopomers of naltrexone and...

journal_title：Journal of analytical toxicology

authors： Huang W,Moody DE,Foltz RL,Walsh SL

更新日期：1997-07-01 00:00:00

abstract：:A woman was alleged to have committed suicide by consuming a gasoline additive shortly before jumping from a second floor balcony within her home. She was found dead by police with a multitude of injuries, lying nude in a partially evaporated unknown residue that was later determined to be methanol. Samples collected ...

journal_title：Journal of analytical toxicology

authors： Avella J,Briglia E,Harleman G,Lehrer M

更新日期：2005-10-01 00:00:00

abstract：:This study evaluated the validity of measuring fentanyl concentrations in equine plasma using radioimmunoassay (RIA) by comparing it to the established technique of liquid chromatography-mass spectrometry (LC-MS). Equine plasma samples were analyzed using a solid-phase Coat-A-Count fentanyl RIA and a validated LC-MS m...

journal_title：Journal of analytical toxicology

authors： Thomasy SM,Mama KR,Stanley SD

更新日期：2008-11-01 00:00:00

abstract：:Synthetic cathinones have recently emerged as a substitute for common drugs of abuse. Synthetic cathinones can elicit powerful adverse effects such as delusions, hallucinations and potentially dangerous behavior. To develop a method to analyze 10 synthetic cathinones in oral fluid, we implemented a combined approach o...

journal_title：Journal of analytical toxicology

authors： Amaratunga P,Lorenz Lemberg B,Lemberg D

更新日期：2013-11-01 00:00:00

abstract：:A quantitative analysis was developed for the determination of cocaine, benzoylecgonine, and cocaethylene in oral fluid using liquid chromatography-tandem mass spectrometry. After internal standardization and solid-phase extraction, chromatographic separation was achieved on a reversed-phase column by gradient elution...

journal_title：Journal of analytical toxicology

authors： Clauwaert K,Decaestecker T,Mortier K,Lambert W,Deforce D,Van Peteghem C,Van Bocxlaer J

更新日期：2004-11-01 00:00:00

abstract：:Metabolic transformation of zearalenone (ZEA), a mycotoxin which can contaminate both food and feed, results in the formation of five metabolites, one of them being zeranol (α-ZAL), which can be abused in farm animals as a growth promoter. To the best of our knowledge, there is no analytical method that can distinguis...

journal_title：Journal of analytical toxicology

authors： Vulić A,Lešić T,Kudumija N,Mikuš T,Pleadin J

更新日期：2019-03-01 00:00:00

abstract：:First synthesized in 1970, propafenone is a frequently used 1C antiarrhythmic drug metabolized into two major metabolites, 5-hydroxypropafenone and norpropafenone. Paradoxically, fatal intoxication is rarely described, and only six cases have been reported in the literature. We report our experience with two patients ...

journal_title：Journal of analytical toxicology

authors： Clarot F,Goullé JP,Horst M,Vaz E,Lacroix C,Proust B

更新日期：2003-11-01 00:00:00

abstract：:Unknown compounds that were not amenable to GC/MS were found during routine benzodiazepine HPLC screening in a postmortem case. The apparent thermolability made the application of liquid chromatography with mass spectrometry mandatory. The moving-belt interface was used because of its value for identification based on...

journal_title：Journal of analytical toxicology

authors： Verheij ER,van der Greef J,La Vos GF,van der Pol W,Niessen WM

更新日期：1989-01-01 00:00:00

abstract：:We described a simple procedure for the flash heater methylation of valproic acid and cyclohexylacetic acid (internal standard) by gas-liquid chromatography (GLC). A small volume (100 microL) of sample is acidified with 10% perchloric acid and extracted into hexane. An aliquot is back extracted into 5% tetramethylammo...

journal_title：Journal of analytical toxicology

authors： Calendrillo BA,Reynoso G

更新日期：1980-11-01 00:00:00

abstract：:Continuing our previous studies analyzing drugs of abuse in municipal wastewater, a method was developed for the analysis of opiates in wastewater samples using liquid chromatography coupled with tandem mass spectrometry (LC-MS-MS). Eight opiate drugs and metabolites were analyzed including codeine, hydrocodone, hydro...

journal_title：Journal of analytical toxicology

authors： Gul W,Stamper B,Godfrey M,Gul SW,ElSohly MA

更新日期：2016-06-01 00:00:00

abstract：:Doxepin is a tricyclic antidepressant that is widely prescribed for the treatment of mild depression. In this study, hair samples collected from a patient receiving 25 mg of doxepin daily were analyzed. Doxepin was administered to the patient for 4 months (June 15 to October 15, 1996). Five hair samples were collected...

journal_title：Journal of analytical toxicology

authors： Negrusz A,Moore CM,Perry JL

更新日期：1998-10-01 00:00:00

abstract：:Anticoagulant rodenticides are the largest group of poisons used to kill harmful rodents. Their fundamental mode of action consists in the inhibition of the vitamin K epoxide reductase, which causes blood-clotting alteration, ultimately leading to hemorrhagic events as the cause of death. In this study, we developed a...

journal_title：Journal of analytical toxicology

authors： Leporati M,Salomone A,Golè G,Vincenti M

更新日期：2016-05-01 00:00:00

abstract：:Screening for emerging drugs of abuse, specifically synthetic cathinones and synthetic cannabinoids, is difficult for high-throughput laboratories as immunoassay kits are often unavailable. Consequently, most laboratories employ liquid chromatography-tandem mass spectrometry (LC-MS-MS) screening, which can be complex ...

journal_title：Journal of analytical toxicology

authors： Neifeld JR,Regester LE,Holler JM,Vorce SP,Magluilo J Jr,Ramos G,Bosy TZ

更新日期：2016-06-01 00:00:00

abstract：:Analytical methods were developed to determine the presence of ethylenediaminetetraacetic acid (EDTA) in dried bloodstains to provide probative information when allegations of evidence tampering have been made in criminal cases. A simple screening method using ion chromatography to analyze stains was found to be quant...

journal_title：Journal of analytical toxicology

authors： Miller ML,McCord BR,Martz R,Budowle B

更新日期：1997-11-01 00:00:00

abstract：:Cannabinoids were extracted from serum with C18 SPE cartridges and analyzed as their trimethylsilyl (TMS) derivatives. A benchtop gas chromatography-tandem mass spectrometry (GC-MS-MS) system based on an ion trap with external ionization was used. Quantitation was done in relation to trideuterated internal standards i...

journal_title：Journal of analytical toxicology

authors： Weller JP,Wolf M,Szidat S

更新日期：2000-07-01 00:00:00

abstract：:Due to the lack of certified reference material, a reliable quantification in complex postmortem matrices can only be performed either by the addition of isotope-labelled standards or by the standard addition method. Although standard addition is a basic quantification procedure, its practical implementation is challe...

journal_title：Journal of analytical toxicology

authors： Reiter B,Stimpfl T

更新日期：2015-11-01 00:00:00

abstract：:Salicylate excretion was studied in the breast milk of a nursing mother (Patient A) taking chronic therapeutic doses of aspirin, and caffeine excretion was monitored in the breast milk of a nursing mother (Patient B) who was a heavy coffee drinker. Salicylate concentrations were maximal in serum at 2.25 hours (10.8 mg...

journal_title：Journal of analytical toxicology

authors： Bailey DN,Weibert RT,Naylor AJ,Shaw RF

更新日期：1982-03-01 00:00:00

abstract：:The testing for drugs of abuse in hair is increasingly used to detect illicit substances. Laboratories have implemented various decontamination, or washing, procedures in order to eliminate concerns regarding potential contamination of the hair with drug from the environment. However, the effect of these decontaminati...

journal_title：Journal of analytical toxicology

authors： Paulsen RB,Wilkins DG,Slawson MH,Shaw K,Rollins DE

更新日期：2001-10-01 00:00:00

abstract：:Cyanohydrins, also be called cyanoalcohols, are important industrial precursors to carboxylic acids and some amino acids. Acetone cyanohydrin (ACH) and formaldehyde cyanohydrin (glycolonitrile, FCH), which are the typical examples of cyanohydrins, are classified as extremely hazardous substances. As the cyanohydrins c...

journal_title：Journal of analytical toxicology

authors： Zheng S,Yuan X,Wang W,Liang C,Cao F,Zhang R

更新日期：2016-06-01 00:00:00