固定污染源废气 甲硫醇等8种含硫 有机化合物的测定 气袋采样 …

1 HJ1078-2019 8 - / - Stationarysourceemission Determinationof8organosulfurcompoundsinc ludingmethanethiol Bagsamplingandpreconcentration/gaschroma tographymassspectrometry 2019-12-31 2020-06-30 i ..ii1 ..12 ..13 ..14 ..15 ..16 ..27 ..38 ..49 ..710 ..811 ..912 ..913 ..9 A ..10 B ..11 C ..12ii 8 - / - A B C 2019 12 31 2020 6 30 1 8 - / - 1 8 - / - 8 A 2 GB/T16157 HJ732 HJ/T373 HJ/T397 3 4 5 2 2

2 Mol/mol 20nmol/mol 1 mol/mol 1,4- 100nmol/mol 20d 1 mol/mol 4- 100nmol/mol 20d 6 HJ732 - EI / / 60m m 100% -180 C H2O CO2 - 50 150 C 6L 241kPa 1000 10Pa 1L 7kPa -101 202kPa 10ml

3 100 200L 7 HJ/T397 GB/T16157 HJ732 3 12h 18h 7d ( 50 C) 3 1 3 101kPa 2 =YaXa 1 Xa kPa 4Ya kPa = a 2 Va ml V ml 8 -30 C 80ml/min 10 C 120 C 150 C 10min TENAX -80 C -60 C 10ml/min 10 C 120 C 190 C 10min -170 C 2min 50 70 C 3min 100 C ) -170 C -30 C -35 C 3min C/min 180 C 3min 100 C 4min 2ml/min 30min 5 20.

4 1 250 C 230 C 70eV SCAN 35 300amu SIM GC/MS 4- BFB 1 14- BFB 50 95 8% 40%174 95 50% 120%75 95 30% 66%175 174 4% 9%95 100% 176 174 93% 101%96 95 5% 9%177 176 5% 9%173 174 2% 100 10min 6L 172kPa 100nmol/mol 100ml 300ml 500ml 700ml 20nmol/mol 40nmol/mol 120nmol/mol 200nmol/mol 280nmol/mol i 3 i= t t i 3 i i Ai i AIS i t nmol/mol i nmol/mol 4 = 4 i n RSD 30% TIC 1 B 71-1.

5 4- IS 2- 3- 4- 5- 6- 7- 8- 9- 1 9 Q Q 30% 5 RRT RRT=RTcRTIt 5 RRT RTc min 8 RTIS min 6 RRT RRT =inRRTi n 6 RRT RRTi i n 7 Q=AqAt 7 Q Aq At mg/m3 8 = D1000 8 mg/m3 nmol/mol M g/mol B D L/mol 10 15% 19% 13% C 9 6 107% 103% 108% 101% 109% C 11 20 20 / 20 20 / 20s 60% 140% 24h 30% 12 13 - <10Pa 20 10 A CAS mg/m3 mg/m3 1 B min

6 G/mol 11,4- 88114 2 4548 3 4562 4 4562 5 6 4876 7 4584 8 6190 9 4594 12 C mg/m3 mg/m3 (%) (%) r mg/m3 R mg/m3 1 mg/m3 P % t % P t % 1