To Assist and Serve Scientists Concerned with the Detection and Analysis of Controlled
Substances and Other Abused Substances for Forensic / Law Enforcement Purposes.

Published by the Drug Enforcement Administration 
Office of Forensic Sciences 
Washington, D.C. 20537 

The U. S. Attorney General has determined that the publication of this periodical is necessary in the transaction of the public business required by the Department of Justice. Information, instructions, and disclaimers are published in the first issue of each year.

Volume 6, Numbers 3-4

July-December 2008

Contents

A Specific Screening Color Test for Diazepam
Mohammad Sarwar, Shaena Taylor, and Imran Majeed

An In-Depth Study of the Peruvian base llavada (“Washed Base”) Technique
for Purification of Crude Cocaine Base
Danielle K. Boudreau and John F. Casale

Identification of Levamisole Impurities Found in Illicit Cocaine Exhibits
John F. Casale, Elizabeth M. Corbeil, and Patrick A. Hays

Identification of Diltiazem Impurities / Artifacts during the Analyses of Illicit
Cocaine Exhibits Containing Diltiazem
John F. Casale, Pauline M. Orlando, Valerie L. Colley, and Patrick A. Hays

Etodolac: An Analytical Profile
Mandy C. McGehee

Determination of Cocaine in Various South American Commercial Coca Products
Elizabeth M. Corbeil and John F. Casale

“Crack” Cocaine: A Study of Stability over Time and Temperature
Laura M. Jones, Danielle K. Boudreau, and John F. Casale

The Discoloration of Illicit Drug Samples
James M. Moore and John F. Casale

Note: In order to prevent automated theft of email addresses off the Internet postings of Microgram Journal, all email addresses reported in the Journal have had the “@” character replaced by “ -at- ”.

Cover Art: “Ball and Stick” Model of 2,5-Dimethoxy-4-iodophenethylamine (2C-I; Courtesy of Patrick A. Hays, DEA Special Testing and Research Laboratory, Dulles, VA).