Page:NIOSH Manual of Analytical Methods - 1026.pdf/1
p-CHLOROBENZOTRIFLUORIDE C7 H4 ClF3
MW: 180.56
METHOD: 1026, Issue 1
CAS: 98-56-6
RTECS: XS9145000
EVALUATION: PARTIAL
PROPERTIES:
OSHA : Not Established NIOSH: Not Established ACGIH: Not Established (1 ppm = 7.41 mg/m )
1026
Issue 1: 15 March 2003
liquid; d 1.353 g/mL @ 20 °C; BP 139°C; VP 5.3 mm Hg @ 20 °C
3
SYNONYMS:
4-Chlorobenzotrifluoride, 1-Chloro-4 (trifluoromethyl) benzene, 4-Chloro-",","-trifluorotoluene, PCBTF
SAMPLING SAMPLER:
Coconut Shell Charcoal (CSC) (100/50 mg)
FLOW RATE:
0.01 to 0.2 L/min
VOL-MIN: -MAX:
0.1 L 10.0 L (25 ppm)
SHIPMENT:
Routine
SAMPLE STABILITY:
7 days @ 25°C; 30 days @ 5 °C
BLANKS:
10% of field samples
MEASUREMENT TECHNIQUE:
GAS CHROMATOGRAPHY, FID
ANALYTE:
p-Chlorobenzotrifluoride
DESORPTION:
1 mL of carbon disulfide/methanol (99:1)
INJECTION VOLUME:
1 µL
TEMPERATURE-INJECTION: 250°C -DETECTOR: 300°C -COLUMN: 40°C (1 min) to 150°C (10°C/min) CARRIER GAS:
Helium; 2.8 mL/min
COLUMN:
capillary, fused silica, 30-m x 0.32 mm ID; 1 µm film 100% crossbonded dimethyl polysiloxane
CALIBRATION:
Solutions of p-CBTF in solvent
RANGE:
1.8 µg to 676 µg [1]
ACCURACY RANGE STUDIED:
Not Determined
BIAS:
Not Determined
OVERALL PRECISION (Ö r T ):
Not Determined
ACCURACY:
Not Determined
ESTIMATED LOD: 0.6 µg [1] PRECISION ( þ r ):
0.0131 [1]
APPLICABILITY: The working range for p-chlorobenzotrifluoride was 0.024 to 9.15 ppm (0.178 to 67.8 mg/m3 ) for a 10-L air sample. [1]
INTERFERENCES: Any compounds having similar retention times may co-elute with the analyte of interest.
OTHER METHODS:
None determined.
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition