SPECTROSCOPY, MASS, SECONDARY ION
\spɛktɹˈɒskəpɪ], \spɛktɹˈɒskəpɪ], \s_p_ɛ_k_t_ɹ_ˈɒ_s_k_ə_p_ɪ]\
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A mass-spectrometric technique that is used for microscopic chemical analysis. A beam of primary ions with an energy of 5-20 kiloelectronvolts (keV) bombards a small spot on the surface of the sample under ultra-high vacuum conditions. Positive and negative secondary ions sputtered from the surface are analyzed in a mass spectrometer in regards to their mass-to-charge ratio.
By DataStellar Co., Ltd
Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.
Nearby Words
- spectroscopist
- spectroscopy
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- Spectroscopy, Mass, Secondary Ion
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