NAPHTHYLAMINES, α and β
C10 H7NH2
MW: 143.19
CAS: (1) 134-32-7 (2) 91-59-8
METHOD: 5518, Issue 2
EVALUATION:
OSHA : (1) carcinogen (29 CFR 1910.1004) (2) carcinogen (29 CFR 1910.1009) NIOSH: same as OSHA ACGIH: (1) no TLV (2) human carcinogen
5518
RTECS: (1) QM1400000 (2) QM2100000
PARTIAL
Issue 1: 15 August 1987 Issue 2: 15 August 1994
PROPERTIES: (1) solid; MP 50 °C; VP 0.53 Pa (0.004 mm Hg); 31 mg/m 3) @ 20 °C; (2) solid; MP 113 °C; VP 0.48 Pa (0.0036 mm Hg; 27 mg/m 3) @ 20 °C
SYNONYMS: (1): 1-naphthylamine; alpha-naphthylamine; 1-aminonaphthalene. (2): 2-naphthylamine; beta-naphthylamine; 2-aminonaphthalene. SAMPLING SAMPLER:
FILTER + SOLID SORBENT (glass fiber + silica gel, 100 mg/50 mg)
MEASUREMENT TECHNIQUE:
GAS CHROMATOGRAPHY, FID
ANALYTE:
α- and β-naphthylamines
DESORPTION:
0.05% (v/v) acetic acid in 2-propanol, 0.5 mL
FLOW RATE: 0.2 to 0.8 L/min VOL-MIN: -MAX:
30 L @ 0.5 µg/m 3 100 L
SHIPMENT:
dry ice
SAMPLE STABILITY:
82 to 100% after 22 days at -15 °C [1]
BLANKS:
2 to 10 field blanks per set
INJECTION VOLUME:
1 µL
TEMPERATURE-INJECTOR: -DETECTOR: -COLUMN:
190 °C 165 °C 163 °C
CARRIER GAS:
He, 24 mL/min
COLUMN:
glass, 1.8 m x 2-mm ID, packed with 3% OV-225 on Chromosorb WHP
CALIBRATION:
standard solution of analytes in 0.05% (v/v) acetic acid in 2-propanol
RANGE:
0.15 to 3.5 µg per sample
ACCURACY RANGE STUDIED:
4 to 70 µg/m 3 [1] (50-L samples)
BIAS:
not determined [1]
ˆ ): ≤ 0.10 [1] OVERALL PRECISION (S rT ACCURACY:
not determined
ESTIMATED LOD: 0.01 µg per sample [2] PRECISION (Sr):
(1) 0.08 @ 0.3 µg per sample [2] (2) 0.09 [2]
APPLICABILITY: The working range is 0.003 to 0.07 mg/m 3 (0.0005 to 0.01 ppm) for a 50-L air sample.
INTERFERENCES: The retention time of 1-nitronaphthalene is between those of the analytes and interferes with their determination. Column alternative: 10% Carbowax, 20 M, 4% KOH.
OTHER METHODS: This revises P&CAM 264 [2].
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
