Abstract:
:Different analytical procedures for quantitation of total morphine and codeine in urine were evaluated. Hydrolysis of urine with hydrochloric acid and four different enzymes was compared. In order to effect complete hydrolysis of glucuronide conjugates, hydrolysis with 6.5M HCl containing bisulphite and heating at 100 degrees C for 20 min was required. Results using this hydrolysis procedure agreed well with results from direct analysis of free and conjugated forms by liquid chromatography. Use of more dilute HCl but at a higher temperature was not sufficient. Some enzymatic procedures appeared to give effective hydrolysis with a higher variability, but these procedures were more time-consuming. There was a good quantitative agreement between FID gas chromatography and ion-trap gas chromatography/mass spectrometry. The validated analytical procedure was applied to authentic patient samples.
journal_name
J Anal Toxicoljournal_title
Journal of analytical toxicologyauthors
Lin Z,Lafolie P,Beck Odoi
10.1093/jat/18.3.129subject
Has Abstractpub_date
1994-05-01 00:00:00pages
129-33issue
3eissn
0146-4760issn
1945-2403journal_volume
18pub_type
杂志文章abstract::A method for the simultaneous analysis of cocaine (COC), derivatized benzoylecgonine (BE), and derivatized ecgonine methyl ester (EME) has been developed. Blood or urine containing deuterated analogs of the three analytes is extracted by pouring over a Chem-Elut column and eluting with chloroform/isopropanol (9:1). Th...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/12.5.242
更新日期:1988-09-01 00:00:00
abstract::Human exposure to organophosphate pesticides can be estimated from the presence of urinary metabolites. An isotope-dilution gas chromatography-tandem mass spectrometry (GC-MS-MS) method was developed for quantitating the six dialkyl phosphate urinary metabolites of at least 29 organophosphate pesticides. Urine samples...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/26.5.245
更新日期:2002-07-01 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
pub_type: 杂志文章
doi:10.1093/jat/14.6.383
更新日期:1990-11-01 00:00:00
abstract::A rapid capillary gas-liquid chromatographic method for the determination of barbiturates in plasma at concentrations of clinical importance is presented. This method employs a rapid and simple extraction procedure and direct flame ionization detection with no derivatization. ...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/7.4.178
更新日期:1983-07-01 00:00:00
abstract::Suvorexant (Belsomra®) is a novel dual orexin receptor antagonist used for the treatment of insomnia. The prevalence of suvorexant in forensic samples is relatively unknown, which demonstrates the need for robust analytical assays for the detection of this sedative hypnotic in forensic toxicology laboratories. In this...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkz083
更新日期:2020-04-30 00:00:00
abstract::Decomposed bone and plasma samples of rats exposed to amitriptyline (AMI) and citalopram (CIT) under different dosing patterns were analyzed. Wistar rats received one acute dose (120 mg AMI/kg and 40 mg CIT/kg; n = 5) or two doses (40 mg AMI/kg and 13 mg CIT/kg, n = 5) 40 min apart. After collection of perimortem bloo...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkt078
更新日期:2013-10-01 00:00:00
abstract::Feces are a possible medium to be used for horse doping control. Efficient methods for detecting drugs in feces collected from various animals are routinely applied in institutes of food safety in Belgium. We have already tested whether they are applicable to horse feces. In this report, accelerated solvent extraction...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/30.5.323
更新日期:2006-06-01 00:00:00
abstract::Despite the efforts to prevent the spread of new psychoactive substances (NPS) such as synthetic amphetamine derivatives, it is apparent that newer types of NPS are still emerging on the market in recent years. Due to high potential for their abuse, reliable analytical methods are required to determine these substance...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bky037
更新日期:2018-11-01 00:00:00
abstract::Acetaminophen (APAP, n-acetyl-p-aminophenol) and salicylate (ASA, acetylsalicylic acid) are two of the most frequently overdosed drugs reported in the emergency room. Most APAP and ASA tests are performed with analytical instruments in laboratories, which are not always ideal for emergency situations. A rapid membrane...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/27.6.366
更新日期:2003-09-01 00:00:00
abstract::In this study, the relationships between the concentrations of R/S-methamphetamine (MA) and its metabolite R/S-amphetamine (AP), the AP/MA ratio in hair samples, and MA dependence were investigated by performing segmental hair analysis in MA users. Authentic hair samples collected from 10 chronic MA abusers were cut i...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkz089
更新日期:2020-07-31 00:00:00
abstract::In an effort to determine a practical, efficient, and economical alternative for the use of a radioimmunoassay (RIA) for the detection of lysergic acid diethylamide (LSD) in human urine, the performance of two photometric immunoassays (Dade Behring EMIT II and Microgenics CEDIA) and the Diagnostics Products Corp. (DPC...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/26.7.519
更新日期:2002-10-01 00:00:00
abstract::This report describes a possible suicide by overdosage with diltiazem. The decreased, a 39-year-old male who had been under treatment for an unidentified heart condition, was discovered on the bathroom floor in his residence. Comprehensive drug screens performed on available postmortem specimens revealed the presence ...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/18.3.180
更新日期:1994-05-01 00:00:00
abstract::The List of Prohibited Substances and Methods (the List), an International Standard published yearly by the World Anti-Doping Agency (WADA), determines which substances and methods are prohibited in sport in- and out-of-competition. Stimulants are included within drug class S.6 under the in-competition testing sectio...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/anatox/35.9.613
更新日期:2011-11-01 00:00:00
abstract::We report the validation of a quantitative method for paraquat in plasma and urine using high-performance liquid chromatography (HPLC) with ultraviolet detection (260 nm). Furthermore, we illustrate the use of this method in the clinic (over five years), in conjunction with a qualitative urine paraquat screen. Urine o...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/25.6.456
更新日期:2001-09-01 00:00:00
abstract::Two cases of death following the ingestion of tranylcypromine are presented. High concentrations of tranylcypromine were determined in blood, urine, and liver by gas-liquid chromatography. Tranylcypromine was extracted from buffered blood with n-butyl chloride. The evaporated extract was derivatized with trifluoroacet...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/15.1.38
更新日期:1991-01-01 00:00:00
abstract::A colchicine blood concentration 250 microgram/L was determined in a 39-year-old white female 2 hours following the ingestion of an oral overdose of the drug. At death, 40 hours following ingestion, no drug was detected. Colchicine was extracted from buffered blood using dichloromethane. The evaporated extract was red...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/4.3.153
更新日期:1980-05-01 00:00:00
abstract::Urinary metabolites of famprofazone following oral administration in humans were identified by gas chromatography-mass spectrometry with electron impact-ionization and comparison with the spectra and retention times of authentic standards. The metabolites were determined following selective derivatization with N-methy...
journal_title:Journal of analytical toxicology
pub_type: 临床试验,杂志文章
doi:10.1093/jat/22.1.55
更新日期:1998-01-01 00:00:00
abstract::A method for the simultaneous extraction of the hallucinogens psilocin, bufotenine, lysergic acid diethylamide (LSD) as well as iso-LSD, nor-LSD and O-H-LSD from hair with hydrochloride acid and methanol is presented. Clean-up of the hair extracts is performed with solid phase extraction using a mixed-mode cation exch...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bku141
更新日期:2015-03-01 00:00:00
abstract::The National Institute of Standards and Technology (formerly the National Bureau of Standards), in cooperation with the College of American Pathologists (CAP), has certified the concentrations of phencyclidine (PCP) in two new reference materials (RMs). One of these materials is Standard Reference Material (SRM) 1511,...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/20.1.43
更新日期:1996-01-01 00:00:00
abstract::Ethiofencarb is one of the carbamate compounds, which are, in general, less toxic than organophosphorus insecticides. This is due to their reversible acetylcholinesterase inhibition and relative inability to cross the blood-brain barrier. Generally, ethiofencarb is regarded to be of low toxicity (LD(50) > 200 mg/kg); ...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/33.7.389
更新日期:2009-09-01 00:00:00
abstract::This paper presents a case of fatal overdosage due to an accidental massive administration (750 mg instead of 170 mg) of cisplatin, an anticancer agent, to a 63-year-old patient suffering from lymphoma. Platinum was measured in various postmortem samples by means of inductively coupled plasma mass spectrometry. Heart ...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/28.2.138
更新日期:2004-03-01 00:00:00
abstract::The Abbott TDx Urine Amphetamine/Methamphetamine II fluorescence polarization immunoassay technique was applied to the determination of D-methamphetamine in hemolyzed whole blood. The assay was found to have 100% cross-reactivity with D-methamphetamine and only an 8% cross-reactivity with L-methamphetamine. Whole bloo...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/16.2.115
更新日期:1992-03-01 00:00:00
abstract::Carfentanil is a mu (μ) opioid receptor agonist and is estimated to be ~10,000 times more potent than morphine in animal (non-human) models. It is not approved for human use and is only used to immobilize large exotic animals in veterinary medicine. In mid-2016, carfentanil emerged as a contaminant in street heroin in...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkx042
更新日期:2017-07-01 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
pub_type: 杂志文章
doi:10.1093/jat/4.6.272
更新日期:1980-11-01 00:00:00
abstract::Sampling and drug stability in oral fluid (OF) are crucial factors when interpreting forensic toxicological analysis, mainly because samples may not be analyzed immediately after collection, potentially altering drug concentrations. Therefore, the stability of some common drugs of abuse (morphine, codeine, 6-monoacety...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkz114
更新日期:2020-07-31 00:00:00
abstract::Prolintane is a sympathomimetic amine with pharmacologic properties similar to d-amphetamine. Side effects include insomnia, nervousness, and irritability. Overdoses of prolintane may cause hallucinations, psychosis, and death. The drug is commonly prescribed in Africa, Australia, and Europe but is not available in th...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/31.7.415
更新日期:2007-09-01 00:00:00
abstract::Pigmented (C57BI) and nonpigmented (balb/c) mice, 25 days of age, were treated intraperitoneally with [3H]-nicotine (4 mg/kg, 555 dpm/ng) or [3H]-flunitrazepam (1 mg/kg, 2200 dpm/ng) daily for three days. After 21 days, shaved back hair was digested at 37 degrees C for 24 h with either 1 M sodium hydroxide or 1 M sodi...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/24.1.54
更新日期:2000-01-01 00:00:00
abstract::Although the legitimate clinical use of amphetamine and amphetamine congeners is declining, the illicit use of these drugs remains high. There is a need for a rapid and conclusive method for detecting these compounds in routine urine drug testing, drug screening in drug rehabilitation centers, and as an aid in the dia...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/15.6.323
更新日期:1991-11-01 00:00:00
abstract::Postmortem femoral blood concentrations of the antipsychotic drugs aripiprazole, chlorprothixene and its metabolite, and quetiapine were determined by LC-MS-MS in 25 cases for aripiprazole and 60 cases each for chlorprothixene and quetiapine. For cases where the cause of death was not related to the considered drugs, ...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bku121
更新日期:2015-01-01 00:00:00
abstract::An existing GC-MS method for detecting benzoylecgonine (BZE) in urine was modified by changing derivatizing reagents. This method modification presents a cost-effective alternative derivatization procedure for the detection of BZE in urine by GC-MS. The combination of pentafluoropropanol and acetic anhydride was found...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkx007
更新日期:2017-05-01 00:00:00