产品详情
牛明胶粉标准物:
δ13C:-11.11/43.73%
δ15N:7.54/16.1
δ34S:6.79/0.43
小麦粉标准物质含同位素标准,5克装
oldwater fish gelatin IRMS standard 冷水鱼明胶同位素及元素标准
C3 or C4 type glucose 13C IRMS standard 同位素标准物
合成土壤Synthetic soil (high/medium/Loamy organic content)