ALCOHOLS COMBINED Formulas: Table 1
MW: Table 1
METHOD: 1405, Issue 1
CAS: Table 2
RTECS: Table 2
EVALUATION: PARTIAL
PROPERTIES:
OSHA : Table 2 NIOSH: Table 2 ACGIH: Table 2
COMPOUNDS:
1405
(1) n-butyl alcohol (2) sec-butyl alcohol (3) isobutyl alcohol
(4) n-propyl alcohol (5) allyl alcohol (6) diacetone alcohol
Issue 1: 15 March 2003
Table 1
(7) cyclohexanol (8) isoamyl alcohol (9) methyl isobutyl carbinol
SYNONYMS: See Table 3.
SAMPLING SAMPLER:
MEASUREMENT
SOLID SORBENT TUBE (Coconut shell charcoal, 100 mg/50 mg)
TECHNIQUE:
GAS CHROMATOGRAPHY, FID
ANALYTE:
Compounds above
DESORPTION:
1 mL 5% 2-propanol in CS2
INJECTION VOLUME:
1 µL
FLOW RATE: 0.01 to 0.2 L/min
VOL-MIN: -MAX:
Compounds: (1-3 ) 2L 10 L
(4-9) 1L 10 L
SHIPMENT:
Routine
SAMPLE STABILITY:
See Evaluation of Method.
BLANKS:
2 to 10 field blanks per set
TEMPERATURE -INJECTION: 220 °C -DETECTOR: 250 - 300 °C -COLUMN: 35 °C (7 minutes), to 60 °C at 5 °C/minute, hold 5 minutes, up to 120 °C at 10 °C /minute, hold 3 minutes. CARRIER GAS:
He, 4 mL/min
COLUMN:
Capillary, fused silica, 30 m x 0.32-mm ID; 0.5 µm film polyethylene glycol, DBwax or equivalent
CALIBRATION:
Solutions of analyte in eluent (internal standard optional)
RANGE:
See EVALUATION OF METHOD.
ACCURACY RANGE STUDIED: Not studied [1, 2]. BIAS:
Not determined
OVERALL PRECISION ( Ö r T ):
Not determined
ACCURACY:
Not determined
ESTIMATED LOD: 1 µg each analyte per sample PRECISION:
See EVALUATION OF METHOD.
APPLICABILITY: This method may be used to determine two or more of the specified analytes simultaneously.
INTERFERENCES: High humidity reduces sampling capacity. Less volatile compounds may displace more volatile compounds on the charcoal.
OTHER METHODS: This method combines and updates Methods 1401 and 1402, NMAM, Fourth Edition, Issue 2. Estimated LOD for each analyte is approximately ten times lower than that of the old methods.
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition
