Page:NIOSH Manual of Analytical Methods - 5519.pdf/4

 ENDRIN: METHOD 5519, Issue 2, dated 15 August 1994 - Page 4 of 4 sorbent tubes (range: 1.2 to 6.1 µg per sample) and from the filter sampler (range: 6.1 to 24.5 µg per sample) were 99% with a combined precision of 0.016. No significant breakthrough was observed after 240 min of sampling an atmosphere containing 0.257 mg/m 3 endrin at a flow rate of approximately 1 L/min. Samples stored one week at room temperature and extracted with toluene gave recoveries of 96 to 100%. Overall precision ( SˆrT) was 0.07. No significant bias was found.

REFERENCES: [1] NIOSH Backup Data Report S284 (July 8, 1979). [2] NIOSH Manual of Analytical Methods, 2nd. ed., V. 6, S284, U.S. Department of Health and Human Services, Publ. (NIOSH) 80-125 (1980). [3] Hill, R. H. and J. E. Arnold., "A Personal Air Sampler for Pesticides", Arch. Environ. Contam. Toxicol., 8, 621-628 (1979). [4] NIOSH Research Report-Development and Validation of Methods for Sampling and Analysis of Workplace Toxic Substances, U.S. Department of Health and Human Services, Publ. (NIOSH) 80-133 (1980).

METHOD REVISED BY: Gangadhar Choudhary, Ph.D., ATSDR; S284 originally validated under NIOSH Contract No. 210-76-0123.

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94