Follow NEMC
 |
 |
 |
Extraction Methods Versus Phenol Recoveries in a Single-Blind Performance Evaluation Study
Poster Presentation
Prepared by A. Cover, D. Blye, CEAC
Environmental Standards, Inc., 1140 Valley Forge Road, Valley Forge, Pennsylvania, 19482
Contact Information: acover@envstd.com; 610-935-5577
ABSTRACT
Twelve commercial laboratories participated in an annual single-blind performance evaluation (PE) study as required under an industrial client’s corporate laboratory program. The PE study was performed to determine the accuracy of the laboratory reported results when compared to known values and to ensure compliance with client analytical and reporting quality assurance requirements. A review of the semivolatile organic compound (SVOC) results performed by SW-846 Methods 8270C and 8270D exhibited a large discrepancy in the reported results for phenol. Upon, further review, it was discovered that the laboratories that prepared the SVOC PE sample using Method SW-846 3520C had higher phenol recoveries and higher recoveries for surrogate compound phenol-d5 than the laboratories that utilized SW-846 Method 3510C.
This presentation will focus on the SVOC preparation methods SW-846 Methods 3510C and 3520C and their impact on phenol and substituted phenol recoveries in the single-blind performance evaluation (PE) Study.
(Related Session: Advances in Sample Preparation and Clean-up)
Poster Presentation
Prepared by A. Cover, D. Blye, CEAC
Environmental Standards, Inc., 1140 Valley Forge Road, Valley Forge, Pennsylvania, 19482
Contact Information: acover@envstd.com; 610-935-5577
ABSTRACT
Twelve commercial laboratories participated in an annual single-blind performance evaluation (PE) study as required under an industrial client’s corporate laboratory program. The PE study was performed to determine the accuracy of the laboratory reported results when compared to known values and to ensure compliance with client analytical and reporting quality assurance requirements. A review of the semivolatile organic compound (SVOC) results performed by SW-846 Methods 8270C and 8270D exhibited a large discrepancy in the reported results for phenol. Upon, further review, it was discovered that the laboratories that prepared the SVOC PE sample using Method SW-846 3520C had higher phenol recoveries and higher recoveries for surrogate compound phenol-d5 than the laboratories that utilized SW-846 Method 3510C.
This presentation will focus on the SVOC preparation methods SW-846 Methods 3510C and 3520C and their impact on phenol and substituted phenol recoveries in the single-blind performance evaluation (PE) Study.
(Related Session: Advances in Sample Preparation and Clean-up)