ALCOHOLS IV (1) HOCH2 CH2 OCH3 (2) HOCH2 CH2 OCH2 CH3 (3) HOCH2 CH2 O(CH2 )3 CH3
MW: (1) 76.09 (2) 90.12 (3) 118.17
METHOD: 1403, Issue 3
CAS: (1) 109-86-4 RTECS: (1) KL5775000 (2) 110-80-5 (2) KK8050000 (3) 111-76-2 (3) KJ8575000
EVALUATION: FULL
PROPERTIES:
OSHA : See Table 1 NIOSH: See Table 1 ACGIH: See Table 1
SYNONYMS:
1403
Issue 1: 15 August 1990 Issue 3: 15 March 2003
See Table 1
(1) 2-methoxyethanol: methyl cellosolve, ethylene glycol monomethyl ether, EGME (2) 2-ethoxyethanol: cellosolve, ethylene glycol monoethyl ether, EGEE (3) 2-butoxyethanol: butyl cellosolve, ethylene glycol monobutyl ether, EGBE
SAMPLING
MEASUREMENT
SAMPLER:
SOLID SORBENT TUBE (Coconut shell charcoal, 100 mg/50 mg)
FLOW RATE:
0.01 to 0.05 L/min
VOL-MIN: -MAX:
(1) 6L 50 L
SHIPMENT:
Routine
SAMPLE STABILITY:
30 days @ 5°C
BLANKS:
2 to 10 field blanks per set
(2) 1L 6L
(3) 2L 10 L
TECHNIQUE:
GAS CHROMATOGRAPHY, FID
ANALYTE:
2-methoxyethanol, 2-ethoxyethanol, and 2-butoxyethanol
DESORPTION:
1 mL methylene chloride/methanol (95:5) in an ultrasonic bath for 30 minutes
INJECTION VOLUME:
1 µL
TEMPERATURE -INJECTION: -DETECTOR: -COLUMN:
225°C 300°C 40°C (1 min) - 200°C (12°C/min)
CARRIER GAS:
He, 2.5-3.0 mL/min
COLUMN:
Capillary, fused silica, 30 m x 0.32-mm ID; crossbonded carbowax®-DA or equivalent
CALIBRATION:
Solutions of analytes in desorption solvent
RANGE:
(1) 2 to 387 µg (2) 2 to 373 µg (3) 3 to 361 µg
ACCURACY RANGE STUDIED:
See Table 2.
BIAS:
See Table 2.
OVERALL PRECISION ( Ö r T ):
See Table 2.
ACCURACY:
See Table 2.
ESTIMATED LOD: (1) 0.8 µg/sample (2) 0.7 µg/sample (3) 1.0 µg/sample PRECISION ( þ r ):
(1) 0.024 (2) 0.022 (3) 0.048
APPLICABILITY: The working range for 2-methoxyethanol was 0.095 to 204 ppm (0.33 to 64.5 mg/m3 ) for a 6-L sample volume, for 2-ethoxyethanol was 0.053 to 99 ppm (0.20 to 373 mg/m3 ) for a 1-L sample, and for 2-butoxyethanol was 0.3 to 36.8 ppm (1.5 to 180 mg/m3 ) for a 2-L sample. INTERFERENCES: Any compounds having similar retention times as the analytes of interest.
OTHER METHODS: This method is an improved update of NMAM 1403, issue 2 (15 August 1994) [1 ]. NMAM 1403 (15 August 1994) previously combined and replaced methods S76 [2], S79 [2], and S361 [3]. Other less sensitive methods include OSHA 79 [4] and OSHA 83 [5].
NIOSH Manual of Analytical Methods, Fourth Edition
