MEVINPHOS
(CH3O)2PO2C(CH3)=CHC(O)OCH3; C7H13 O6P METHOD: 2503, Issue 2
MW: 224.27
CAS: - -
CLASS B
OSHA : 0.01 ppm (skin) NIOSH: Group I Pesticide [1] ACGIH: 0.1 mg/m 3 (skin); 0.3 mg/m 3 STEL (1 ppm = 9.16 mg/m 3 @ NTP)
RTECS:
Issue 1: 15 February 1984 Issue 2: 15 August 1992
PROPERTIES: liquid; d 1.25 g/mL @ 20 C; BP 325 C; MP 20.6 °C; VP 0.4 Pa (0.003 mm Hg; 4 ppm) 20 °C
SYNONYMS: dimethyl 2-methoxycarbonyl-1-methylethenyl phosphate; Phosdrin; CAS #7786-34-7.
SAMPLING SAMPLER:
SOLID SORBENT TUBE (extracted Chromosorb 102, 100 mg/50 mg)
MEASUREMENT TECHNIQUE:
GAS CHROMATOGRAPHY, FPD
ANALYTE:
phosphorus
DESORPTION:
1 mL toluene; stand 30 min
INJECTION VOLUME:
5 µL
FLOW RATE: 0.2 to 1 L/min VOL-MIN: -MAX:
15 L 240 L
SHIPMENT:
routine
SAMPLE STABILITY:
at least 7 days @ 25 C [2]
TEMPERATURE-INJECTION: -DETECTOR: -COLUMN:
BLANKS:
2 to 10 field blanks per set
CARRIER GAS:
N 2 or He, 28 mL/min
COLUMN:
2 m x 2 mm glass; Super-Pak 20M or equivalent
CALIBRATION:
Mevinphos in toluene
RANGE:
5 to 55 µg per sample [2]
ACCURACY RANGE STUDIED: 0.027 to 0.145 mg/m 3 [2] (260-L samples) BIAS:
not significant [2]
OVERALL PRECISION (sr): 0.069 [2]
190 °C 215 °C 170 °C
ESTIMATED LOD: 0.2 µg per sample [2] PRECISION (sr):
0.035 [2]
APPLICABILITY: The working range is 0.003 to 0.3 ppm (0.025 to 0.28 mg/m 3) for a 200-L air sample. The method can measure a STEL concentration of < 0.4 mg/m 3.
INTERFERENCES: None identified.
OTHER METHODS: This is Methods S296 [3] in a revised format.
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/93
