Determination of chemical composition and isotope...

Details Determination of chemical composition and isotope... Determination of chemical composition and isotope...

2011-03-08

2011-03-08

Dunn, Drew A (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Chemical analysis

C702S028000, C702S085000, C250S281000, C250S282000, C250S286000, C250S424000

Reexamination Certificate

active

07904253

ABSTRACT:
A method for determining elemental composition of ions from mass spectral data, comprising obtaining at least one mass measurement from mass spectral data; obtaining a search list of candidate elemental compositions whose exact masses fall within a given mass tolerance range from the accurate mass; reporting a probability measure based on a mass error; calculating an isotope pattern for each candidate elemental composition from the search list; constructing a peak component matrix including at least one of the isotope pattern and mass spectral data; performing a regression against at least one of isotope pattern, mass spectral data, and the peak component matrix; reporting a second probability measure for at least one candidate elemental composition based on the isotope pattern regression; and combining the two the probability measures into an overall probability measure. A method for determining elemental isotope ratios from mass spectral data.

REFERENCES:
patent: 6983213 (2006-01-01), Wang
patent: 7348553 (2008-03-01), Wang et al.
patent: 7451052 (2008-11-01), Wang et al.

Affiliated with

Also associated with

Rating

Determination of chemical composition and isotope... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Determination of chemical composition and isotope..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determination of chemical composition and isotope... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2747970