Results 81 to 90 of about 2,731 (212)

The presence and persistence of cocaine and benzoylecgonine in the Hawkesbury-Nepean river system

open access: yes, 2020
Many substances of environmental concern enter waterways through the insufficient treatment and subsequent discharge of wastewater. Cocaine is an illicit stimulant drug which is frequently detected in wastewater both within Australia and internationally.
Russom, Bianca L.
core  

Development and validation of an analytical method for the simultaneous determination of cocaine and its main metabolite, benzoylecgonine, in human hair by gas chromatography/mass spectrometry. [PDF]

open access: yes, 2008
A new, simple and rapid procedure has been developed and validated for the determination of cocaine and its main metabolite, benzoylecgonine, in human hair samples. After extraction from within the hair matrix by a mixture of methanol/hydrochloric acid
Dias, M.   +9 more
core   +1 more source

Illicit drug use derived from wastewater-based epidemiology in Iran, their removal during wastewater treatment, and occurrence in receiving waters

open access: yesHeliyon
This study aimed to measure the licit and illicit drug concentrations in wastewater treatment plants (WWTPs), their removal efficiency, and their consumption rate by wastewater-based epidemiology (WBE) approach.
Anvar Asadi   +4 more
doaj   +1 more source

Rapid quantitation of cocaine and benzoylecgonine in urine by "on column" capillary gas chromatography after "Extrelut" extraction

open access: yes, 1984
Cocaine (I) [50-36-2] and its principal metabolite in man, benzoylecgonine [519-09-5], were detd. in urine by on column capillary gas chromatog. equipped with an NP detector. Isopropylbenzoylecgonine was used as the internal std. The extn.
R. Froldi   +4 more
core  

Monitoring the stability of cocaine and benzoylecgonine in postmortem tissues using laminar flow tandem mass spectrometry [PDF]

open access: yes, 2023
In postmortem toxicology, certain cases require the examination of embalmed biological specimens to investigate the presence and potential role drugs may have played in a person’s death.
Rumph, Simone Noelle
core  

Alternative methods of analysis for the forensic determination of cocaine and benzoylecgonine.

open access: yes, 1993
Alternative methods of analysis for the forensic determination of cocaine and ...
Albert Karl Jr. Larsen (7986392)
core  

The development and applications of polyclonal and monoclonal antibodies for the detection of illicit drugs in saliva samples [PDF]

open access: yes, 2002
Anti-tetrahydrocannabinol (THC), anti-cocaine and anti-morphine polyclonal antibodies were produced. These antibodies were successfully applied to an ELISA format for the detection of THC, cocaine, and morphine in saliva samples. Monoclonal antibodies
Fanning, Lorna M.
core  

A Direct Aqueous Derivatization GSMS Method for Determining Benzoylecgonine Concentrations in Human Urine [PDF]

open access: yes, 2015
A sensitive and reliable method for extraction and quantification of benzoylecgonine (BZE) and cocaine (COC) in urine is presented. Propyl-chloroformate was used as derivatizing agent, and it was directly added to the urine sample: the propyl derivative ...
DA VALLE, YLENIA   +3 more
core   +1 more source

Efficient extraction method using magnetic carbon nanotubes to analyze cocaine and benzoylecgonine in breast milk by GC/MS

open access: yes, 2017
Aim: The increasing use of cocaine (COC) during breastfeeding has led to growing concern about exposure of infants. Therefore, to study this exposure, a new method to analyze COC and benzoylecgonine in breast milk was developed.
Philippe Serp   +12 more
core   +1 more source

Simultaneous determination of ethyl glucuronide, cocaine, cocaethylene, and benzoylecgonine in hair by using LC–MS/MS

open access: yesJournal of Analytical Science and Technology
Alcohol and cocaine (COC) are commonly co-used drugs that cause addiction and have harmful effects. Their abuse may threaten the health of the abuser and public safety by causing serious accidents or crimes.
Dong Won Shin   +3 more
doaj   +1 more source

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