Determination of Phthalate Esters in Childcare Products and Children's Toys by GC-MS
In this article we look at the determination of phthalate esters in childcare products and children's toys by GC-MS.
The Consumer Product Safety Improvement Act of 2008 (CPSIA) requires testing of childcare products and toys for selected phthalate esters by gas chromatography–mass spectrometry (GC–MS). The CPSC test method “CPSC-CH-C1001-09.2 Standard operating procedure for Determination of Phthalate” specifies GC–MS analysis in the SIM mode to monitor for low-intensity ions unique to specific phthalate esters, but full-scan mass spectra are also valuable in qualitative identification. Operation of the mass spectrometer in the FASST Scan/SIM mode allows concurrent high speed acquisition of full-scan and SIM mass spectral data to provide improved qualitative identification while still maintaining optimum sensitivity.
Next Generation Peak Fitting for Separations
December 11th 2024Separation scientists frequently encounter critical pairs that are difficult to separate in a complex mixture. To save time and expensive solvents, an effective alternative to conventional screening protocols or mathematical peak width reduction is called iterative curve fitting.
Identifying and Rectifying the Misuse of Retention Indices in GC
December 10th 2024LCGC International spoke to Phil Marriott and Humberto Bizzo about a recent paper they published identifying the incorrect use of retention indices in gas chromatography and how this problem can be rectified in practice.
