Page:NIOSH Manual of Analytical Methods - 5600.pdf/22

 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 22 of 20 Table 11.

Preparation of Spiked Media and Liquid Calibration Standards Spiked Concentration

Spiking Levels (Fraction of REL) (1) I.

(1) (2)

(3) (4) (5)

A.

B.

C.

D.

1/30x REL

1/10x REL

1/3x REL

1x REL

SS-2 50 µL 10 µL

SS-2 50 µL 30 µL

SS-1 50 µL 10 µL

E.

F.

3x REL

Spiking of Media or Liquid 1. Spiking Solution to use: 2. Preferred Syringe Size: 3. Spiking Volume (2) to use:

II.

Solutions

Total µg spiked(3) 1. Azinphos methyl 2. Chlorpyrifos 3. Diazinon 4. Dicrotophos 5. Disulfoton 6. Ethion 7. Ethoprop 8. Fenamiphos 9. Fonofos 10. Malathion (5) 11. Methamidophos 12. Methyl parathion 13. Mevinphos 14. Monocrotophos 15. Parathion 16. Phorate 17. Ronnel (5) 18. Sulprofos 19. Terbufos 20. General (for 120L) (4,5)

0.8 0.8 0.4 1.0 0.4 1.6 0.4 0.4 0.4 4 0.8 0.8 0.4 1.0 0.2 0.2 4 4 0.4 x/30

2.4 2.4 1.2 3 1.2 4.8 1.2 1.2 1.2 12 2.4 2.4 1.2 3 0.6 0.6 12 12 1.2 x/10

8 8 4 10 4 16 4 4 4 40 8 8 4 10 2 2 40 40 4 x/3

SS-1 50 µL 30 µL

24 24 12 30 12 48 12 12 12 120 24 24 12 30 6 6 120 120 12 x

SS-1 Dilute this 100 µL volume (mL) of 90 µL 10 mg/mL stock solution to prepare 10 mL of solution SS-1 72 0.8 72 0.8 36 0.4 90 1.0 36 0.4 144 1.6 36 0.4 36 0.4 36 0.4 360 4.0 72 0.8 72 0.8 36 0.4 90 1.0 18 0.2 18 0.2 360 4.0 360 4.0 36 0.4 3x 4y

For a collection volume of 120 L. Range corresponds to values within column C, Table 8. For liquid calibration standard preparations, add specified volume to 2 mL desorption solution in 2-mL volumetric flask. For laboratory control samples spiked at the REL, apply volume specified in column D to front section of sampler; in duplicate. For Desorption Efficiency determination, apply specified volume to front section of sampler; do each of five levels in triplicate. Total µg per sample, for spiked media, or per 2 mL desorption solution for liquid calibration standards. Where x, µg/sample = REL, µg/L x 120 L/sample; and y, mg/mL = REL, mg/m 3 x 4 m 3/mL. For all REL > 1 mg/m 3, use 1/10 x REL in the calculations (assumes that collection volume in these cases would be 12 L instead of 120 L).

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