Background The changing prevalence and patterns of tobacco use, the advent of novel
nicotine delivery devices, and the development of new biomarkers prompted an update of …

During the past 7 years and since the introduction of dispersive liquid–liquid microextraction
(DLLME), the method has gained widespread acceptance as a simple, fast, and miniaturized …

Novel solvent microextraction techniques are presently receiving a great deal of interest
from analytical chemists, as confirmed by the constantly increasing number of published …

In forensic toxicology, drugs of abuse are routinely analyzed due to legal statute in medical
or legal investigation, such as death cases, poisoning cases, and drug misuse, determining …

Bisphenol A (BPA), an endocrine disrupter, is widely used to make chemicals for
polycarbonate, plastics, beverage containers, epoxy resins, and cash register receipts. BPA …

Active and passive smoking are serious public health concerns Assessment of tobacco
smoke exposure using effective biomarkers is needed. In this study, we developed a …

Method validation is being applied in the reported analytical methods for decades. Even
before this protocol was defined, authors already somehow validated their methods without …

Chronic exposure to specific carcinogens present in secondhand smoke has been
associated with different types of cancers. Hair is an ideal matrix to develop a proper …

In the present study, the modification of a polysulfone hollow fiber membrane with in situ
molecularly imprinted sol–gel process (as a novel and one-step method) was prepared and …

As the adulteration of dietary supplements with synthetic drugs remains a prevalent issue,
the inclusion of anti-obesity agents may pose health risks, potentially leading to central …