1-NITROPYRENE IN DIESEL PARTICULATES C16 H9 NO2
MW: 247.26
METHOD: 2560, Issue 1
CAS: 5522-43-0
RTECS: UR2480000
EVALUATION: PARTIAL
OSHA : no PEL NIOSH: no REL ACGIH: no TLV
PROPERTIES:
2560
Issue 1: 15 March 2003
solid; d 1.246 g/cc @ 20 °C; MP 154157 °C; BP 231 °C
SYNONYMS: None
SAMPLING
MEASUREMENT
SAMPLER:
FILTER (Glass Fiber, 37-mm)
TECHNIQUE:
GAS CHROMATOGRAPHY, NITROGEN CHEMILUMINESCENCE DETECTOR
FLOW RATE:
1.0 to 2.0 L/min
ANALYTE:
1-Nitropyrene
VOL-MIN: -MAX:
480 L 960 L
DESORPTION:
1 mL toluene; place on a rotary shaker for minimum of 12 hours.
SHIPMENT:
Ship in container at ambient temperature.
INJECTION VOLUME:
SAMPLE STABILITY:
At least 28 days @ 25 °C
BLANKS:
2 to 10 field blanks per set
ACCURACY RANGE STUDIED:
Generated atmospheres not studied
BIAS:
Not determined
TEMPERATURE -INJECTION: -DETECTOR: -COLUMN:
Not determined
250 °C Furnace: 850 °C Initial: 100 °C, ramp at 7.5 °C/min to 305 °C
CARRIER GAS:
Helium @ 10.0 mL/min (splitless)
COLUMN:
Capillary, fused silica, 30m x 0.53-mm ID; 1.5 µm film 5% diphenyl-95% dimethyl polysiloxane.
CALIBRATION:
Liquid standard solutions of 1-nitropyrene in toluene.
RANGE:
0.020 to 50 µg per sample
OVERALL PRECISION (Ö r T ): Not determined ACCURACY:
20 µL
ESTIMATED LOD: 0.010 µg per sample (see Evaluation of Method) PRECISION ( þ r ):
0.02 @ 1 to 50 µg per sample
APPLICABILITY: The working range is 0.021 to 104 µg/m3 for a 500 L sample. An appropriate range of calibration standards should be used to bracket the expected analyte concentration range. Because of sensitivity and accuracy considerations, a single calibration curve will not be appropriate for the entire working range. This method was developed to analyze 1nitropyrene in a diesel particulate matrix (see Figure 2). INTERFERENCES: None identified - however, compounds with a similar retention time may interfere. Positive identification may be confirmed by dual column chromatography using an appropriate alternative capillary column. Identification can also be confirmed by mass spectrometry. OTHER METHODS: None identified.
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition
