isotope ratio

CAIS Correction for Blood Matrix Effect on Determination of Lead Concentration and Isotope Ratio by ICP-MS

CAIS法校正ICP-MS测定血铅浓度及同位素比值基体效应的研究

Detection of palm oil adulterated into corn oil by carbon isotope ratio method

碳同位素比值法检测棕榈油掺入玉米油的研究

After calibrated by Uranium isotope ratio reference materials, the accuracy and precision are improved.

使用铀同位素标准物质校正质谱计,方法测量铀同位素丰度比的准确度和精密度明显提高.

Stable Isotope Ratio Analysis for the Identification of Adulterated Fruit Juice

鉴别果汁真假的稳定同位素比率分析法

Detection for the Source of the Metabolites of Androstenedione in Urine by Isotope Ratio Mass Spectrometry

同位素质谱法检测尿中雄烯二酮代谢物

The Primary Research of Stable Isotope Ratio Mass Spectrometry Method in Application of NFC and FC Juice Authentic Identification

稳定同位素比率质谱法在NFC与FC果汁鉴别上的应用初探

The isotope ratio is directly used for comparing oils or gases.

同位素比率直接用于比较各种石油或天然气.

The burnup values agree with the data obtained from heavy isotope ratio and radiochemistry methods within the errors of 4. 0% and 2. 8% respectively.

测得的元件燃耗值与用重同位素比值法和放化法测得的燃耗值分别在4.0%和2.8%的误差范围内相符。

There are differences between natural and adulterated juices in stable isotope ratio.

天然果汁与掺假果汁之间在稳定同位素比率方面存在着差异.

Double standard method of accurate determination of isotope ratio

精确测定同位素比的双标准方法

Under 0.1 ~10 isotope ratio range and 95 % confidence, the relative expanded uncertainty of the technique %.

最后得出在铀同位素丰度比为0.1～10的范围内95%的置信水平下, 该方法的相对扩展不确定度为0.10%.