Urine

• Lood in urine per g creat

• LSD

• LSD identificatie

• Magnesium

• Mandelzuur

• Mangaan

• Mangaan in 24uurs urine

• MDA in urine (screening)

• MDMA in urine (screening)

• Mephedrone

• Metanefrine vrij

• Methadon

• Methamfetamines

• Methanol

• Methyl-ethylketon