发明名称 |
IONIZATION POLARITY PREDICTION OF COMPOUNDS FOR EFFICIENT MASS SPECTROMETRY |
摘要 |
A method for segregating compounds by ionization polarity for use in polari ty sensitive analysis thereof comprising the steps of: a) selecting a data base of a statistically significant group of compounds a nd determining the polarization, positive or negative, at which each of said compounds is ionized; b) structurally analyzing the individual compounds to determine structural characteristics common to a majority of compounds which ionize at positive polarity and to determine structural characteristics common to a majority of compounds which ionize at negative polarity, as polarization determinants; c) sequentially arranging the polarization determinants in classification trees according to percentage determination of one of said negative or positive polarization; d) applying the polarization determinants in one of said classification tree s in classifying a new compound for a predicted polarization of positive or negative at which said compound is ionized; e) segregating compounds classified as ionizing at positive polarity and compounds classified as ionizing at negative polarity; and f) separately analyzing the segregated compounds with the respective predicted polarities with an analysis instrument operable in different modes depending on ionization polarity.
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申请公布号 |
CA2353200(A1) |
申请公布日期 |
2002.01.20 |
申请号 |
CA20012353200 |
申请日期 |
2001.07.18 |
申请人 |
PFIZER PRODUCTS INC., |
发明人 |
POTTER, DAVID MARTIN;BROCKMAN, ADAM HALE;BLAKE, JAMES FRANCIS JR. |
分类号 |
G01N27/62;G01N27/48;G01N33/94;G02B;G06F19/00;H01J49/04;H01J49/26;(IPC1-7):G01N27/48 |
主分类号 |
G01N27/62 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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