高温热转变元素分析仪-稳定同位素比值质谱仪
型号:DELTA V Plus
厂家:Thermo Fisher Scientific
性能指标:
1. 质量数范围(Mass range at 3kV): 1~96 dalton
2. 质量分辨率(Mass resolution): m/Δm=110 (10% valley )
3. 绝对灵敏度(Absolute sensitivity with ConFlow; CO2 at m/z 44):1100 molecules/Ion
4. 离子源线性(Ion source linearity):0.02‰ / nA
5. 系统稳定性(System stability):< 10 ppm
6. 噪音水平(Noise level):< 50 db(a)
7. 分析器有效半径:(Effective Magnetic Deflection Radius; CNOS): 191 mm
8. 放大器输出范围(Output range of amplifier):0-50V
9.元素分析仪持续流状态下外精度和线性(Precision and linearity by EA continuous flow gas Introduction):
34S: (SO2; 5nA):0.10‰ (1σ), 0.03‰/ nA
18O: (CO; 5nA):0.15‰ (1σ), 0.04‰/ nA
主要功能:能够同步在线测量地质样品中黄铁矿与硫酸盐的δ33S和δ34S; 能够在线测量地质样品中硫酸盐的δ18O;