This paper presents concentration ranges and positivity rates for the common drugs, alcohol
markers, new psychoactive substances (NPS) and anabolic steroids tested in head hair (n …

It is now recognized that workplace drug testing is a complex interdisciplinary science, with
the choice of the sample to use in drug testing depending on the purpose of the testing …

The Society of Hair Testing (SoHT) Guidelines for Drug Testing in Hair provide laboratories
with recommended best practice guidelines whether they are currently offering drug testing …

At the annual meeting of the Society of Hair Testing in Vadstena, Sweden in 2006, a
committee was appointed to address the issue of guidelines for hair testing and to assess …

Due to differences in hair growth rate depending on anatomical region, age, gender,
ethnicity and interindividual variability, interpretation of parent drug or/and metabolite …

Recent advances in drug testing have led to the development of new drug testing
methodologies for the detection and measurement of drugs of abuse in hair. An important …

Despite having been extensively discussed over the last decade, the differentiation between
systemic exposure and external contamination still continues to be one of the limitations of …

This paper presents an overview of the most common sectioning patterns utilised in the
analysis of hair for drug use; report on the major user groups (sectors) that currently make …

Hair testing for drugs of abuse is performed in Lombardy by eleven analytical laboratories
accredited for forensic purposes, the most frequent purposes being driving license …

Modern sophisticated analytical tools have enabled toxicologists to investigate hair
specimens for the presence of drugs. Although great sensitivity and specificity in hair …