GC Analysis of Nitrosamines in Water on PTA-5 after SPME using 65 μm PDMS/DVB Fiber
材料
固相微萃取纖維
产品编号
说明
价格
SPME固相微萃取萃取头，二甲基硅氧烷/二乙烯基苯(PDMS/DVB)
df 65 μm(PDMS/DVB, needle size 24 ga, for use with manual holderCONDITIONS
sample/matrix
analytes in water +25% KCl, pH 10.0
SPME fiber
65 μm polydimethylsiloxane/divinylbenzene (57310-U)
extraction
immersion, 15 min (rapid stirring)
desorption process
270 °C for 1 min
column
PTA-5, 30 m × 0.32 mm I.D., 0.5 μm (24331)
oven
50 °C (1 min), 10 °C/min to 250 °C (2 min)
inj. temp.
250 °C
detector
MSD, SIM
carrier gas
helium, 30 cm/sec
liner
0.75 mm I.D., SPME