Performance Demonstration of a New GC-MS Instrument and Novel BFB Tune for Analysis of Volatile Compounds by EPA Method 624.1 and 8260C.

New Organic Monitoring Techniques
Poster Presentation

Prepared by A. Sandy, R. Karbowski, N. Lock, R. Marfil-Vega
Shimadzu Scientific Instruments, 7102 Riverwood Drive, Columbia, MD, 21046, United States


Contact Information: alsandy@shimadzu.com; 410-910-0868


ABSTRACT

With global population growth and demand for safe water, there is an increased need for monitoring pollutants in surface and groundwater as well as industrial wastewater discharges. As a result, there is a growing demand for high sensitivity state-of-the arts instrumentation to meet and exceed limits set by new environmental regulations. In this study, a newly released GCMS-QP2020 NX is evaluated to demonstrate whether its performance meets the stability and sensitivity criteria from EPA methods 624.1 and 8260C. Also tested was the performance of a novel BFB tuning algorithm to ensure that each method’s tuning criteria can pass the EPA BFB tuning requirement. Results demonstrated that a novel BFB tune met EPA method 624.1 and 8260C criteria for an extended period of operations. To asses sensitivity, MDLs were calculated at two individual concentrations. For method 624.1, MDLs calculated at 0.50 µg/L ranged from 0.07 to 0.28 µg/L, while at 1.00 µg/L they ranged from 0.09 to 0.40 µg/L. Regarding method 8260C, MDLs ranged from 0.07 to 0.43 µg/L and from 0.09 to 0.40 µg/L when standards were spiked at 0.5 and 1.00 µg/L, respectively. Overall, the study results illustrate that the GCMS-QP2020 NX meets the EPA detection limits requirement for both these methods.