ETHYLENEDIAMINE
H2N(CH2)2NH2
MW: 60.1
METHOD: 2540, Issue 2
2540
CAS: 107-15-3
RTECS: KH8575000
EVALUATION: UNRATED
OSHA : 10 ppm NIOSH: 10 ppm ACGIH: 10 ppm (skin) (1 ppm = 2.46 mg/m 3)
PROPERTIES:
Issue 1: 15 May 1989 Issue 2: 15 August 1994
liquid; d 0.90 g/mL @ 20 °C; BP 116 - 117 °C; VP 1.43 kPa; (10.7 mm Hg); flash point 34 °C
SYNONYMS: ethylenediamine: EDA; 1,2-diaminoethane; 1,2-ethanediamine
SAMPLING SAMPLER:
TECHNIQUE:
HPLC, UV DETECTION
ANALYTE:
naphthylisothiourea derivative of analytes
FLOW RATE: 0.01 to 0.1 L/min [1]
DESORPTION:
2 mL dimethylformamide (DMF), ultrasonic 30 min
VOL-MIN: -MAX:
1 L @ 10 ppm 20 L
INJECTION VOLUME: 10 µL
SHIPMENT:
routine
COLUMN:
10-µm radial cyano, 10 cm x 8-mm ID in Waters RCM-100 radial compression mode
MOBILE PHASE:
EDA, 80/20 isoctane/isopropanol; DETA and TETA, 50/50 isoctane/isopropanol at 3 mL/min
CALIBRATION:
standard solutions of derivatives in DMF
SAMPLE STABILITY: BLANKS:
SOLID SORBENT TUBE (1-naphthylisothiocyanatecoated XAD-2, 80 mg/40 mg)
MEASUREMENT
>30 days @ 20 °C [2] 2 to 10 field blanks per set
ACCURACY RANGE: RANGE STUDIED:
0.016 to 8 mg/m 3; (10-L samples)
ˆ ): 0.06 [1] OVERALL PRECISION (S rT BIAS:
-6.6%
ACCURACY:
±17.4%
5 to 465 µg per sample
ESTIMATED LOD: 0.9 µg per sample PRECISION (Sr):
0.013
APPLICABILITY: The working range for EDA is 1 to 130 mg/m 3 for a 10-L air sample. This method is the result of evaluation [2] of OSHA Method #60 for DETA, EDA, TETA [1]. The theoretical capacity of each front section is 1.3 mg of EDA.
INTERFERENCES: Other primary or secondary amines may react with the sampler coating reagent, and thereby reduce the sampler capacity.
OTHER METHODS: This replaces NIOSH Method P&CAM 276 [3]. The method of Anderson, et al., for EDA [4] is an alternate method using thiourea derivatization and HPLC analysis.
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
