质量分数(10-6 )GBW07536(GSS-45)GBW07537(GSS-46)GBW07538(GSS-47)GBW07539(GSS-48)GBW07540(GSS-49)GBW07541(GSS-50)GBW07542(GSS-51)GBW07543(GSS-52)Ag0. 114±0.0090.081±0.0030.068±0.0050.049±0.0050.084±0.0050.0