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Stir membrane extraction: a useful approach for liquid sample pretreatment.
The novel approach was sensitive and precise enough for the detection of the target analytes in the low nanogram per liter range using 25 mL of sample, and ranged from 0.8 ng/L (fluoranthene) to 7.6 ng/ L (benzo-anthracene) with relative standard deviations lower than 8%.
Monitoring nanoparticles in the environment
This overview describes some methodological aspects relating to the fields of nanoparticle analysis, nanometrology and analytical chemistry.
Present and future applications of carbon nanotubes to analytical science
It is clear that while nanotubes are being tested for use in many different fields, their truly enormous potential has yet to be realized in analytical chemistry.
Study of the degradation of the herbicides 2,4-D and MCPA at different depths in contaminated agricultural soil.
Two phenoxyacid herbicides (2,4-D and MCPA) and their six corresponding phenols were determined in soil by using gas chomatography with electron impact mass spectrometry (GC/MS) for