Liu RH - Search Results

1

Enzymatic digestion, solid-phase extraction, and gas chromatography/mass spectrometry of derivatized intact oxazepam in urine.

Langner JG, Gan BK, Liu RH, Baugh LD, Chand P, Weng JL, Edwards C, Walia AS. Langner JG, et al. Among authors: liu rh. Clin Chem. 1991 Sep;37(9):1595-601. Clin Chem. 1991. PMID: 1893596

2

Correlations on radioimmunoassay, fluorescence polarization immunoassay, and enzyme immunoassay of cannabis metabolites with gas chromatography/mass spectrometry analysis of 11-nor-delta 9-tetrahydrocannabinol-9-carboxylic acid in urine specimens.

Weaver ML, Gan BK, Allen E, Baugh LD, Liao FY, Liu RH, Langner JG, Walia AS, Cook LF. Weaver ML, et al. Among authors: liu rh. Forensic Sci Int. 1991 Jan-Feb;49(1):43-56. doi: 10.1016/0379-0738(91)90170-n. Forensic Sci Int. 1991. PMID: 1851715

3

Simultaneous analysis of amphetamine, methamphetamine, and 3, 4-methylenedioxymethamphetamine (MDMA) in urine samples by solid-phase extraction, derivatization, and gas chromatography/mass spectrometry.

Gan BK, Baugh D, Liu RH, Walia AS. Gan BK, et al. Among authors: liu rh. J Forensic Sci. 1991 Sep;36(5):1331-41. J Forensic Sci. 1991. PMID: 1955829

4

Simultaneous gas chromatography/mass spectrometry assay of methadone and 2-ethyl-1,5-dimethyl-3,3-diphenylpyrrolidine (EDDP) in urine.

Baugh LD, Liu RH, Walia AS. Baugh LD, et al. Among authors: liu rh. J Forensic Sci. 1991 Mar;36(2):548-55. J Forensic Sci. 1991. PMID: 2066730

5

Improved gas chromatography/mass spectrometry analysis of barbiturates in urine using centrifuge-based solid-phase extraction, methylation, with d5-pentobarbital as internal standard.

Liu RH, McKeehan AM, Edwards C, Foster G, Bensley WD, Langner JG, Walia AS. Liu RH, et al. J Forensic Sci. 1994 Nov;39(6):1504-14. J Forensic Sci. 1994. PMID: 7815030

6

Evaluation of immunoassay methods for the screening of cocaine metabolites in urine.

Baugh LD, Allen EE, Liu RH, Langner JG, Fentress JC, Chadha SC, Cook LF, Walia AS. Baugh LD, et al. Among authors: liu rh. J Forensic Sci. 1991 Jan;36(1):79-85. J Forensic Sci. 1991. PMID: 2007883

7

Selection of an appropriate initial test cutoff concentration for workplace drug urinalysis--Cannabis example.

Liu RH, Edwards C, Baugh LD, Weng JL, Fyfe MJ, Walia AS. Liu RH, et al. J Anal Toxicol. 1994 Mar-Apr;18(2):65-70. doi: 10.1093/jat/18.2.65. J Anal Toxicol. 1994. PMID: 8207936

8

Evaluation of enzyme immunoassay performance characteristics--phencyclidine example.

Fyfe MJ, Chand P, McCutchen C, Long JS, Walia AS, Edwards C, Liu RH. Fyfe MJ, et al. Among authors: liu rh. J Forensic Sci. 1993 Jan;38(1):156-64. J Forensic Sci. 1993. PMID: 8426151

9

Sample Differentiation: Cocaine Example.

Baugh LD, Liu RH. Baugh LD, et al. Among authors: liu rh. Forensic Sci Rev. 1991 Dec;3(2):101-15. Forensic Sci Rev. 1991. PMID: 26267160 Review.

10

Performance characteristics of phencyclidine assay using Reply Analyzer and Emit d.a.u., Emit 700, and 1:1 (Emit d.a.u.-Emit 700) reagents.

Fyfe MJ, Chand P, McCutchen C, Long JS, Walia AS, Edwards C, Liu RH. Fyfe MJ, et al. Among authors: liu rh. J Anal Toxicol. 1993 May-Jun;17(3):188-9. doi: 10.1093/jat/17.3.188. J Anal Toxicol. 1993. PMID: 8336495 No abstract available.

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