| 1. | An obvious restraint in the use of isotope ratios results from the need to employ mass spectrometers .
使用同位素比值法有着一个明显的局限因素，就是要用质谱仪进行分析。 |
| 2. | The residue analysis in determination of sr isotopes ratio of carbonate
碳酸盐岩锶同位素比值测定中的残渣分析 |
| 3. | Research on the mineral sources of bronze vessels in shang - zhou by lead - isotope ratio
从铅同位素比值试析商周时期青铜器的矿料来源 |
| 4. | The correction of mass fractionation in the measurement of rhenium and osmium isotope ratios by icp - ms
电感耦合等离子体质谱法测量铼和锇同位素比值的质量分馏校正 |
| 5. | O o method for determination of stable oxygen isotope ratio of water from fruit juices , using isotope ratio mass spectrometry
使用同位素比值度谱法对水果中水的稳定氧同位素比值 |
| 6. | C c method for determination of stable carbon isotope ratio of sugars from fruit juices , using isotope ratio mass spectrometry
使用同位素比值度谱法对水果中糖的稳定碳同位素比值 |
| 7. | H h method for determination of stable hydrogen isotope ratio of water from fruit juices , using isotope ratio mass spectrometry
使用同位素比值记录质谱分析法对水果中水的稳定氢同位素比值 |
| 8. | C c . fruit and vegetable juices . determination of the stable carbon isotope ratio in the pulp of fruit juices . method using isotope ratio mass spectrometry
果汁和蔬菜汁.水果汁果肉中稳定碳同位素比值 |
| 9. | Although the products have same chemical compositions , they will exhibit various isotopic ratios if they produced from different sources or by different chemical / physical processes
虽然物质具相同之化学组成，但如果来源不同或经不同物理化学过程所产生，其同位素比值会因同位素的分化作用而有差异。 |
| 10. | The stable isotopic research is established by studying the discrepancy in isotope ratio , which was caused by isotope fractionation , and the isotopic ratio difference can be determined by mass spectrometer
稳定同位素的研究主要是建立在此同位素分化作用所造成的同位素比值差异，而此同位素比值差异可被质谱仪测知。 |
