...学家J．W．White博士采用质谱法检测蜂蜜中碳同位素比值以鉴别蜂蜜中高果玉米糖浆含量，并相继建立了蜂蜜碳同位素比值分析(SCIRA)和蜂蜜内标碳同位素比值分析(ISCIRA)方法。
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不过，变质岩中微量碳酸盐的碳含量和碳同位素比值分析能够对原岩类型提供有效的判别。
Nevertheless, the combined carbon content and isotope analyses of micro-carbonate in metamorphic rocks can be used to make a distinction in origin between sedimentary and igneous protoliths.
根据甲烷碳同位素法和烃类比值法分析判断该区地表烃类异常主要由深部油气活动所产生。
The surface hydrocarbon anomalies in the area was caused by oil and gas activities in deep part, according to the analysis and judgement using the carbon isotope and hydrocarbon ratio.
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