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  • 质谱及核磁配套用通用型仪器、耗材和试剂的居间服务商,亦包括咨询及培训服务。     Intermediate service provider of general  instruments, consumables and reagents for mass spectrometry and nuclear magnetic resonance,incl consulting and training.
  • 质谱及核磁配套用通用型仪器、耗材和试剂的居间服务商,亦包括咨询及培训服务。     Intermediate service provider of general  instruments, consumables and reagents for mass spectrometry and nuclear magnetic resonance,incl consulting and training.
  • 质谱及核磁配套用通用型仪器、耗材和试剂的居间服务商,亦包括咨询及培训服务。     Intermediate service provider of general  instruments, consumables and reagents for mass spectrometry and nuclear magnetic resonance,incl consulting and training.
  • 质谱及核磁配套用通用型仪器、耗材和试剂的居间服务商,亦包括咨询及培训服务。     Intermediate service provider of general  instruments, consumables and reagents for mass spectrometry and nuclear magnetic resonance,incl consulting and training.
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Silicon(硅)

Silicon(硅)

Nominal
  Mass

Accurate
  Mass

% Natural
  Abundance

Chemical
  Form

Enrichment
  Available %


28 Si

27.9769271(7)

92.23(7)

oxide, metal

99+


29 Si

28.9764949 (7)

4.67 (5)

oxide, metal

95 - 99+


30 Si

29.9737707(7)

3.10 (5)

oxide, metal

99+


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Nominal
  Mass

Accurate
  Mass

% Natural
  Abundance

Chemical
  Form

Enrichment
  Available %


28 Si

27.9769271(7)

92.23(7)

oxide, metal

99+


29 Si

28.9764949 (7)

4.67 (5)

oxide, metal

95 - 99+


30 Si

29.9737707(7)

3.10 (5)

oxide, metal

99+


硅同位素有多种应用。硅28被认为可以提高半导体的热导率。Si-29广泛用于核磁共振波谱。Si-30已被用于生产放射性同位素Si-31。Si-30还被用于研究硅的自扩散性,并被用于研究同位素对超导电性的影响。