Investigation of nitrite adulteration on the immunoassay and GC-MS analysis of cannabinoids in urine specimens

Journal of Analytical Toxicology

Volumn 24, Issue 8, 2000, Pages 708-714

  Tsai, J S C ^a   ElSohly, M A ^b   Tsai, S F ^a   Murphy, T P ^b   Twarowska, B ^a   Salamone, S J ^a  

^a Roche Diagnostics Corporation   (United States)

^b ElSohly Laboratories Incorporated   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CANNABINOID; NITRITE;

ARTICLE; CLINICAL ARTICLE; CONCENTRATION RESPONSE; CONTAMINATION; CROSS REACTION; ENZYME MULTIPLIED IMMUNOASSAY TECHNIQUE; GAS CHROMATOGRAPHY; HUMAN; IMMUNOASSAY; MASS SPECTROMETRY; SCREENING TEST; URINALYSIS; URINE PH;

CANNABIS;

EID: 0034469802     PISSN: 01464760     EISSN: None     Source Type: Journal    
DOI: 10.1093/jat/24.8.708     Document Type: Article

References (19)

1. Adulterants causing false negatives in illicit drug testing
2. Interference of common household chemicals in immunoassay methods for drugs of abuse
3. Integrity of urine specimens submitted for toxicologic analysis: Adulteration, mechanisms of action, and laboratory detection
4. In vivo adulteration: Excess fluid ingestion casues false-negative marijuana and coaine urine test results
5. 9-THC-9-COOH
6. Nitrite adulteration of workplace urine drug testing specimens I. Sources and associated concentrations of nitrite in urine and distinction between natural sources and adulteration
7. Determination of five abused drugs in nitrite-adulterated urine by immunassays and gas chromatography-mass spectrometry
8. Whizzies - A urine drug screen adulterant
9. Improved procedure for overcoming nitrite interferences in GC-MS procedures for cannabinoids
10. Laboratory experience with adulterated blind quality control samples
11. 9-tetrahydrocannabinol-9-carboxylic acid in urine in relation to the drug screening analysis
12. 9-THC acid metabolite in biological fluids
13. The measurement of nitrite in adulterated urine samples by high-performance ion chromatography