Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1981 2
2011 1
2024 0

Text availability

Article attribute

Article type

Publication date

Search Results

3 results

Results by year

Filters applied: . Clear all
Page 1
Qualitative and quantitative analysis of some synthetic, chemically acting laxatives in urine by gas chromatography-mass spectrometry.
Kok RM, Faber DB. Kok RM, et al. J Chromatogr. 1981 Mar 13;222(3):389-98. doi: 10.1016/s0378-4347(00)84139-0. J Chromatogr. 1981. PMID: 6894448
The method proved to be suitable for measuring urine concentrations for at least four days after administration of a single oral low therapeutic dose of the laxatives to sixteen healthy volunteers....
The method proved to be suitable for measuring urine concentrations for at least four days after administration of a single oral low ther …