Page:NIOSH Manual of Analytical Methods - 5701.pdf/1

 RESORCINOL

C6H4(OH)2

MW: 110.1

METHOD: 5701, Issue 1

5701

CAS: 108-46-3

RTECS: VG9625000

EVALUATION: PARTIAL

OSHA : no PEL NIOSH: 10 ppm ACGIH: 10 ppm (1 ppm = 4.49 mg/m3 @ NTP)

PROPERTIES:

Issue 1: 15 January 1998

white crystals, hygroscopic; d 1.272 g/mL @ 20 C; BP 280 C; MP 111 C; VP 2.66 x 105 kPa (2 x 10-4 mm Hg) @ 25 C, vapor density 3.79 (air=1)

SYNONYMS: 1,3-benzenediol, m-benzenediol, 1,3-dihydroxybenzene, m-dihydroxybenzene, 3-hydroxyphenol, m-hydroxyphenol

SAMPLING SAMPLER:

FILTER / SOLID SORBENT TUBE OVS tube: glass fiber filter, XAD-7

FLOW RATE:

0.2 to 1 L/min

VOL-MIN: -MAX: 160 L

5L

SHIPMENT:

routine; protect from exposure to light

SAMPLE STABILITY:

30 days at 5 C (protect from light)

BLANKS:

2 to 10 field blanks per set

MEASUREMENT TECHNIQUE:

GAS CHROMATOGRAPHY, FID

ANALYTE:

resorcinol

DESORPTION:

2 mL methanol

INJECTION VOLUME:

1 µL

TEMPERATURE-INJECTION: -DETECTOR: -COLUMN:

250 C 300 C 80 -230 C (12 C/min)

CARRIER GAS:

Helium, 2.4 mL/min

COLUMN:

capillary, 30 m x 0.28-mm ID; 0.25-µm film 100% dimethyl polysiloxane Mtx-1™ or equivalent [1]

ACCURACY

RANGE STUDIED:

not determined

CALIBRATION:

solutions of resorcinol in methanol

BIAS:

not determined

RANGE:

12 to 5960 µg/sample [LOQ determined from XAD-7 solid sorbent DE recovery]

OVERALL PRECISION ( ACCURACY:

rT

):

not determined not determined

ESTIMATED LOD: 2 µg/sample PRECISION ( r):

0.032 [1]

APPLICABILITY: The working range is 0.04 to 22.12 ppm (0.2 mg/m3 to 99.3 mg/m3) for a 60-L air sample. Under the GC parameters given in the method, resorcinol can be identified based upon retention time and quantified. INTERFERENCES:No specific interferences were identified. However, any compound with a similar retention time may interfere. OTHER METHODS:This method is based on the OSHA stopgap method for resorcinol [2].

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition