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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 ∷ Calcium（钙）
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Calcium（钙）

Calcium（钙）

Nominal
  Mass

Accurate
  Mass

% Natural
  Abundance

Chemical
  Form

Enrichment
  Available %


40 Ca



carbonate

99+


42 Ca

41.9586176 (13)

0.647 (23)

carbonate

68 - 97+


43 Ca

42.9587662 (13)

135 (10)

carbonate

56 - 90+


44 Ca

43.9554806 (14)

2.086 (110)

carbonate, Oxide

94 - 98+


46 Ca

45.953689 (4)

0.004 (3)

carbonate

5 - 24+


48 Ca

47.952533 (4)

0.187 (21)

enquire

75 - 97+


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Nominal
  Mass

Accurate
  Mass

% Natural
  Abundance

Chemical
  Form

Enrichment
  Available %


40 Ca



carbonate

99+


42 Ca

41.9586176 (13)

0.647 (23)

carbonate

68 - 97+


43 Ca

42.9587662 (13)

135 (10)

carbonate

56 - 90+


44 Ca

43.9554806 (14)

2.086 (110)

carbonate, Oxide

94 - 98+


46 Ca

45.953689 (4)

0.004 (3)

carbonate

5 - 24+


48 Ca

47.952533 (4)

0.187 (21)

enquire

75 - 97+


钙同位素（主要是Ca-42、Ca-44、Ca-46和Ca-48）广泛用于临床研究，主要用于营养研究。它们主要用于测量妇女和儿童的钙吸收。在成年人中，缺钙与骨质疏松症的严重程度增加密切相关。儿童缺钙主要与佝偻病的发展有关。Ca-48已被用于轰击铅和铋靶，以产生超重型元素。