概述

-Sensitivity <3 pg N/second (signal to noise 3:1) in both N and nitrosamine modes -Selectivity g N/g C > 2 to 107 in N mode (selectivity in nitrosamine mode is matrix-dependent) -Linearity >104 -Repeatability* <1.5% RSD 8 hours (~ the same in N and nitrosamine) <2% RSD 18 hours (~3% RSD in nitrosamine mode over 21 hours) -Gas flow through Ozone Generator 20-30 mL/min at 3-6 psig (inlet pressure) -Typical reaction cell pressure 4 - 8 Torr RV5 Oil Sealed Pump 6 - 12 Torr Dry Piston Pump -Typical Burner Pressure 130 - 150 torr operating -Typical Burner Temperature 900 °C -Typical Hydrogen Flow Rate 6-10 SCCM -Typical Oxygen Flow Rate 8 - 15 SCCM -Signal Output Ranges 0-1V, 0-10V, 0 - 10V * Burner temperature 950 °C, 11 SCCM oxygen, and 6 SCCM hydrogen; 25 ppm N as nitrobenzene in toluene; 0.2 µL injection on column (HP 19095-121Z), n=7 for 3 hours; n=13 for 18 hours and n=10 n-dipropylnitrosamine in toluene at 4 µg/mL, 0.2 µL injection on column (HP 19095-121Z).