
Auteur H. HUIZER
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Documents disponibles écrits par cet auteur (3)

ENGLISH : Since 1993 many seizures of 1-phenylethylamine have been made in several European countries. It was originally thought that 1-phenylethylamine had been made in error, but later information suggested that it had been prepared delibera[...]
ENGLISH : The accuracy of a quantitative analysis is highly dependent on the quality of the reference standard. Although reference standards are more and more supplied with a certificate, laboratories may feel the need for additional acceptanc[...]
FRANÇAIS : Etude de l'évolution de la composition et de la qualité de l'héroïne disponible sur le marché noir en Hollande entre 1970 et 1990. Jusqu'en 1970, l'héroïne provient majoritairement du sud-est asiatique, depuis, l'origine évolue progr[...]