New Triple Quadrupole GC/MS Offers Greater Precision, Selectivity and Sensitivity
Jul
13
Written by:
7/13/2010 4:25 PM
Weck Laboratories acquires Agilent Technologies new 7000B Triple Quadrupole Gas Chromatograph/Mass Spectrometer (GC/MS/MS), delivering high confidence in ultra-trace level results, while shortening analysis times for target compounds in complex samples. The 7000B provides femtogram-level sensitivity for analyses such as pesticides, PAHs, PCBs, pyrethroids, THC, and steroids in food, environmental, pharmaceutical, and forensic matrices. Advanced GC and MS/MS technologies translate into everyday high performance. MS/MS techniques are most often cited for consistent, ultra-low detection limits with very complex sample matrices. Multi-target screening methods-pesticide residues in foods, drugs in biological fluids and environmental contaminants in soil and water-have dominated much of the literature. But what's often overlooked is that any SIM method can benefit from MS/MS, with better qualitative and quantitative results. Benefits include:
- Elimination of chemical and neutral noise in the spectral region of the product ions-translating into lower detection limits than SIM
- Higher probability of a more unique (more selective) product ion-translating into fewer false negatives and false positives than SIM