False results from SPEC.LTD.MP3 microcolumns for screening opiates--it's not the heat; it's the humidity.
J M
JM
Bonicamp
D002855:Chromatography, Thin Layer; D004032:Diet; D016903:Drug Monitoring / Q000379:methods*; D005189:False Positive Reactions; D006801:Humans; D006813:Humidity; D009294:Narcotics / Q000032:analysis*; D010207:Papaver; D010945:Plants, Edible; D010946:Plants, Medicinal; D012680:Sensitivity and Specificity; D019966:Substance-Related Disorders / Q000175:diagnosis*
D009294:Narcotics