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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.
索引与类别
 
网站首页 ∷ 索引与类别 ∷ 稳定同位素金属 ∷ Barium(钡)
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Barium(钡)

Barium(钡)

Nominal
  Mass

Accurate
  Mass

% Natural
  Abundance

Chemical
  Form

Enrichment
  Available %


130 Ba

129.906282 (8)

0.106 (1)

carbonate

32 - 55+


132 Ba

131.905042 (9)

0.101 (1)

carbonate

 12 - 43+


134 Ba

133.904486 (7)

2.417 (18)

carbonate

83 - 88+


135 Ba

134.905665 (7)

6.592 (12)

carbonate

92 - 94+

136 Ba

135.904553 (7)

7.854 (24)

carbonate

93 - 95+


137 Ba

136.905812 (6)

11.23 (24)

carbonate

25 - 91+


138 Ba

137.905232 (6)

71.70 (42)

carbonate

99+


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Nominal
  Mass

Accurate
  Mass

% Natural
  Abundance

Chemical
  Form

Enrichment
  Available %


130 Ba

129.906282 (8)

0.106 (1)

carbonate

32 - 55+


132 Ba

131.905042 (9)

0.101 (1)

carbonate

 12 - 43+


134 Ba

133.904486 (7)

2.417 (18)

carbonate

83 - 88+


135 Ba

134.905665 (7)

6.592 (12)

carbonate

92 - 94+

136 Ba

135.904553 (7)

7.854 (24)

carbonate

93 - 95+


137 Ba

136.905812 (6)

11.23 (24)

carbonate

25 - 91+


138 Ba

137.905232 (6)

71.70 (42)

carbonate

99+


钡同位素在许多领域和应用中都有应用。Ba-130用于生产用于近距离放射治疗（种子）的Ba-131/Cs-131。Ba-132可用于生产用作伽马参考源的Ba-133。Ba-134已用于核物理领域的实验。Ba-136已用于研究光子散射现象。钡同位素Ba-136和Ba-138已用于活化截面实验。Ba-135已用于验证旋量对称性的使用，而Ba-137已用于相对论耦合团簇理论的实验。最后，Ba-138被用于研究恒星中所谓的r过程和s过程。