Medicine & Life Sciences
Meconium
79%
Drug Users
63%
Cocaine
60%
Newborn Infant
46%
3-hydroxybenzoylecgonine
45%
Urine
43%
Mothers
38%
benzoylecgonine
19%
benzoylnorecgonine
17%
anhydroecgonine methyl ester
16%
ecgonine methyl ester
14%
norcocaine
14%
cocaethylene
14%
4'-hydroxycocaine
9%
norcocaethylene
9%
ethyl ecgonine
9%
Enzyme Multiplied Immunoassay Technique
6%
Pregnancy
4%
Urinalysis
4%
Gas Chromatography-Mass Spectrometry
4%
Esters
4%
Placenta
3%
Fetus
3%
Therapeutics
0%
Earth & Environmental Sciences
drug user
100%
ester
50%
pregnancy
22%
neonate
13%
detection
11%
exposure
11%
gas chromatography
9%
assay
8%
mass spectrometry
8%
metabolism
8%
marker
8%
program
5%
analysis
2%
method
2%
Engineering & Materials Science
Metabolites
82%
Esters
55%
Mass spectrometry
12%
Metabolism
12%
Gas chromatography
12%
Assays
11%
Testing
10%
Chemical Compounds
Cocaine
73%
Drug
31%
Ecgonine Methyl Ester
13%
Methyl Ester
7%
Ecgonine
6%
Ethyl Ester
4%
Marker
3%
Pharmacological Metabolism
3%
Gas Chromatography Mass Spectrometry (GCMS)
3%