Eric C Hemenway

from Milpitas, CA
Age ~52

Eric Hemenway Phones & Addresses

  • 1595 Mount Diablo Ave, Milpitas, CA 95035
  • Hawi, HI
  • San Jose, CA
  • Lansing, MI
  • Albuquerque, NM
  • East Lansing, MI

Professional Records

License Records

Eric John Hemenway

License #:
21167 - Expired
Issued Date:
Aug 23, 2007
Effective Date:
Nov 20, 2009
Expiration Date:
Oct 31, 2009
Licensed Practical Nurse

Eric John Hemenway

License #:
67793 - Active
Issued Date:
Jul 11, 2008
Effective Date:
Jul 11, 2008
Expiration Date:
Oct 31, 2018
Registered Nurse


Us Patents

Methods For Improved Data Dependent Acquisition

View page
US Patent:
2006028, Dec 21, 2006
Jun 2, 2005
Appl. No.:
Michael Senko - Sunnyvale CA,
Eric Hemenway - Milpitas CA,
Tina Hemenway - Milpitas CA,
International Classification:
B01D 59/44
US Classification:
A method of analyzing data from a mass spectrometer for a data dependent acquisition is described. In an embodiment of this method, mass spectral scans are taken of a sample eluted from a liquid chromatography column. An extracted ion chromatogram (XIC) is then created for each m/z data point of the mass spectral scans and the XIC for each m/z data point are correlated to a model function, such as a monotonically increasing function, or the first half of a gaussian function, to obtain a XIC correlation value. A weighting function is then applied to the XIC correlation value to obtain a current weighted intensity. The current weighted intensity for each m/z point is used to reconstruct a weighted mass spectrum, which is then used to make a real-time decision for the data dependent acquisition. In an embodiment, the data dependent acquisition is the performance of tandem mass spectrometry. Embodiments of the invention also describe a sample processing apparatus for the data dependent acquisition and a computer readable medium that provides instructions to the sample processing apparatus to perform the method described above.
Eric C Hemenway from Milpitas, CA, age ~52 Get Report