TRIPHENYL PHOSPHATE
(C6H5)3PO4
MW: 326.28
METHOD: 5038, Issue 1
CAS: 115-86-6
5038
RTECS: TC8400000
EVALUATION: PARTIAL
OSHA : 3 mg/m 3 NIOSH: 3 mg/m 3 ACGIH: 3 mg/m 3
PROPERTIES:
Issue 1: 15 August 1994
solid; MP 50 °C; BP 245 °C @ 11 mm Hg; d 1.27 g/mL @ 60 °C; VP <0.05 kPa (<0.1 mm Hg); flash point 220 °C
SYNONYMS: phosphoric acid triphenyl ester; TPP
SAMPLING SAMPLER:
FILTER (0.8-µm cellulose ester membrane)
MEASUREMENT TECHNIQUE:
GAS CHROMATOGRAPHY, PHOSPHORUS MODE
ANALYTE:
triphenyl phosphate
EXTRACTION:
10 mL anhydrous ether, 30 min
INJECTION VOLUME:
5 µL
FPD
IN
FLOW RATE: 1 to 3 L/min VOL-MIN: -MAX:
10 L @ 3 mg/m 3 400 L
SHIPMENT:
routine
SAMPLE STABILITY:
not determined
BLANKS:
2 to 10 field blanks per set
BULK SAMPLE:
One bulk sample should be submitted to laboratory in a glass container with a Teflonlined cap. The label should match air samples.
ACCURACY RANGE STUDIED:
1.25 to 6.99 mg/m 3 [1] (100-L sample)
BIAS:
- 1.37%
ˆ rT): OVERALL PRECISION (S
0.066 [1]
ACCURACY:
± 11.24
TEMPERATURE-INJECTION: -DETECTOR: -COLUMN:
250 °C 250 °C 210 °C
CARRIER GAS:
N 2, 50 mL/min
COLUMN:
6-ft X 1/8-in stainless steel, packed with 5% OV-101 on 100/120 mesh Supelcoport
DETECTOR:
H 2, 20 mL/min air, 150 mL/min
CALIBRATION:
standard solutions of triphenyl phosphate in anhydrous ether
RANGE:
30 to 900 µg per sample
ESTIMATED LOD: 10 µg per sample [1] PRECISION (Sr):
0.051 [1]
APPLICABILITY: The working range is 0.3 to 20 mg/m 3 for a 100-L air sample. This method may be adapted to other phosphates of relatively low volatility with appropriate changes in chromatographic conditions.[1] A non-polar capillary column may be used for better resolution and sensitivity.
INTERFERENCES: None identified.
OTHER METHODS: This method revises S210 [1].
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
