AMINOETHANOL COMPOUNDS I
Table 1
MW: Table 1
METHOD: 2007, Issue 2
CAS: Table 1
RTECS: Table 1
EVALUATION: PARTIAL
OSHA : Table 1 NIOSH: Table 1 ACGIH: Table 1
2007
Issue 1: 15 May 1985 Issue 2: 15 August 1994
PROPERTIES: Table 1
COMPOUNDS 2-aminoethanol: ethanolamine; 2-hydroxyethylamine and 2-dibutylaminoethanol: 2-n-dibutylaminoethanol; DBAE SYNONYMS: 2-diethylaminoethanol: 2-hydroxytriethylamine SAMPLING SAMPLER:
SOLID SORBENT TUBE (silica gel, 300 mg/150 mg)
FLOW RATE:
0.01 to 0.2 L/min
VOL-MIN: -MAX:
4L 24 L
FIELD TREATMENT:
add 20 µL conc. HCl to silica gel immediately after sampling
SHIPMENT:
routine
SAMPLE STABILITY:
at least 4 weeks @ 25 °C [1]
BLANKS:
2 to 10 field blanks per set
BIAS:
TECHNIQUE:
GAS CHROMATOGRAPHY, FID
ANALYTE:
compounds above
DESORPTION:
2 mL 4:1 (v/v) methanol:water; stand 2 h with occasional shaking
INJECTION VOLUME:
3 µL
TEMPERATURE-INJECTION: -DETECTOR: -COLUMN:
ACCURACY RANGE STUDIED:
MEASUREMENT
150 °C 250 °C 90 °C, 3 min; 90 to 225 °C @ 16°/min, hold 6 min
CARRIER GAS:
N 2 or He, 30 mL/min
COLUMN:
1.8 m x 2-mm ID silanized glass, 10% Carbowax 20 M + 2% KOH on 80/100 mesh Chromosorb WAW
CALIBRATION:
solutions of analyte in 4:1 methanol:water containing 0.12 N HCl
RANGE:
0.1 to 6 mg per sample [2]
see EVALUATION OF METHOD [1,2] - 2.9% ESTIMATED LOD: 0.005 mg per sample [2]
ˆ ): 0.056 [2] OVERALL PRECISION (S rT PRECISION (Sr): ACCURACY:
0.026 @ 0.6 to 2.7 mg per sample [2]
± 12.1%
APPLICABILITY: The working range is 5 to 300 mg/m 3 for each compound in a 20-L air sample. Water vapor does not significantly affect collection efficiency [3]. Sensitivity may be improved at least ten-fold by using a photoionization or nitrogen-selective detector.
INTERFERENCES: None identified [3]. The chromatographic column or separation conditions may be changed to circumvent interference problems. A DB-5 fused silica capillary column may be used.
OTHER METHODS: This revises P&CAM 270 [3], S140 [4], and Method 2007 (dated 5/15/85).
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
