The isotope analysis of minim lead in the gold dust has special meaning.
The isotope fractionation effect is primary factor affecting accuracy of hydrogen isotope analysis.
Hydrocarbon source rocks by carbon isotope analysis results showed that with the increase of carbon isotope, ethane maturity turns heavy, just smaller influenced than methane.
The present study made a detailed carbon and oxygen stable isotope analysis on the lacustrine carbonates from the Lower Cretaceous Yixian Formation, Yixian, western Liaoning, NE China.
The results of groundwater isotope analysis show that the groundwater in the Yinchuan Plain has different recharge patterns.
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