US 11,913,924 B2
Ion generation using modified wetted porous materials
Robert Graham Cooks, West Lafayette, IN (US); and Zheng Ouyang, West Lafayette, IN (US)
Assigned to Purdue Research Foundation, West Lafayette, IN (US)
Filed by Purdue Research Foundation, West Lafayette, IN (US)
Filed on Mar. 30, 2023, as Appl. No. 18/128,584.
Application 18/128,584 is a continuation of application No. 17/395,909, filed on Aug. 6, 2021, granted, now 11,635,415.
Application 17/395,909 is a continuation of application No. 16/905,193, filed on Jun. 18, 2020, granted, now 11,119,081, issued on Sep. 14, 2021.
Application 16/905,193 is a continuation of application No. 16/107,296, filed on Aug. 21, 2018, granted, now 10,732,159, issued on Aug. 4, 2020.
Application 16/107,296 is a continuation of application No. 15/710,072, filed on Sep. 20, 2017, granted, now 10,088,461, issued on Oct. 2, 2018.
Application 15/710,072 is a continuation of application No. 15/359,031, filed on Nov. 22, 2016, granted, now 9,797,872, issued on Oct. 24, 2017.
Application 15/359,031 is a continuation of application No. 14/987,154, filed on Jan. 4, 2016, granted, now 9,500,630, issued on Nov. 22, 2016.
Application 14/987,154 is a continuation of application No. 14/512,579, filed on Oct. 13, 2014, granted, now 9,230,792, issued on Jan. 5, 2016.
Application 14/512,579 is a continuation of application No. 14/119,548, granted, now 8,895,918, issued on Nov. 25, 2014, previously published as PCT/US2012/040521, filed on Jun. 1, 2012.
Claims priority of provisional application 61/492,933, filed on Jun. 3, 2011.
Claims priority of provisional application 61/492,947, filed on Jun. 3, 2011.
Claims priority of provisional application 61/492,937, filed on Jun. 3, 2011.
Prior Publication US 2023/0341360 A1, Oct. 26, 2023
Int. Cl. G01N 30/95 (2006.01); H01J 49/16 (2006.01); H01J 49/00 (2006.01); H01J 49/04 (2006.01); G01N 30/91 (2006.01); G01N 33/49 (2006.01)
CPC G01N 30/95 (2013.01) [G01N 30/91 (2013.01); G01N 33/49 (2013.01); H01J 49/0031 (2013.01); H01J 49/0404 (2013.01); H01J 49/0409 (2013.01); H01J 49/0431 (2013.01); H01J 49/167 (2013.01); H01J 49/168 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A system, the system comprising:
a porous substrate comprising a tip;
a mass spectrometer that comprises an inlet;
a cartridge configured to hold at least a portion of the porous substrate within a body of the cartridge, and an electrode operably coupled to the porous substrate within the body of the cartridge such that when the porous substrate is disposed within the cartridge, the electrode is operably coupled to the porous substrate; wherein the cartridge further comprises a distal opening configured to accommodate a distal portion of the porous substrate and the tip of the porous substrate and wherein the cartridge is aligned with the inlet of the mass spectrometer such that the tip of the porous substrate aligns with the inlet.