US 11,867,631 B2
Portable water quality instrument
Mark C. Peterman, Fremont, CA (US); Merwan Benhabib, San Francisco, CA (US); and Samuel Kleinman, Oakland, CA (US)
Assigned to OndaVia, Inc., Hayward, CA (US)
Filed by OndaVia, Inc., Hayward, CA (US)
Filed on Nov. 16, 2021, as Appl. No. 17/527,828.
Application 17/527,828 is a continuation of application No. 16/280,651, filed on Feb. 20, 2019, abandoned.
Application 16/280,651 is a continuation of application No. 14/198,163, filed on Mar. 5, 2014, granted, now 10,254,229, issued on Apr. 9, 2019.
Prior Publication US 2022/0074862 A1, Mar. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01N 21/65 (2006.01); G01N 21/47 (2006.01); G01N 21/63 (2006.01); G01N 21/66 (2006.01); G01N 33/18 (2006.01); G01J 3/02 (2006.01); G01J 3/18 (2006.01); G01J 3/44 (2006.01); B01L 3/00 (2006.01); G01N 27/447 (2006.01); G01N 30/60 (2006.01); G01N 21/49 (2006.01); G01N 21/68 (2006.01); G01N 21/27 (2006.01); G01N 30/00 (2006.01); G01J 3/28 (2006.01)
CPC G01N 21/65 (2013.01) [B01L 3/502715 (2013.01); B01L 3/502761 (2013.01); G01J 3/02 (2013.01); G01J 3/0256 (2013.01); G01J 3/0291 (2013.01); G01J 3/18 (2013.01); G01J 3/44 (2013.01); G01J 3/4412 (2013.01); G01N 21/276 (2013.01); G01N 21/47 (2013.01); G01N 21/4785 (2013.01); G01N 21/49 (2013.01); G01N 21/63 (2013.01); G01N 21/658 (2013.01); G01N 21/66 (2013.01); G01N 21/68 (2013.01); G01N 27/44704 (2013.01); G01N 27/44791 (2013.01); G01N 30/6095 (2013.01); G01N 33/18 (2013.01); B01L 2200/04 (2013.01); B01L 2200/0652 (2013.01); B01L 2200/12 (2013.01); B01L 2300/0627 (2013.01); B01L 2300/0636 (2013.01); B01L 2300/0654 (2013.01); B01L 2300/0681 (2013.01); B01L 2300/087 (2013.01); B01L 2300/0867 (2013.01); B01L 2400/0418 (2013.01); B01L 2400/0421 (2013.01); G01J 2003/2866 (2013.01); G01J 2003/2879 (2013.01); G01N 30/6065 (2013.01); G01N 2021/651 (2013.01); G01N 2021/656 (2013.01); G01N 2030/0095 (2013.01); G01N 2201/0221 (2013.01); G01N 2201/13 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A portable testing device comprising:
a. a housing, wherein said housing comprises a cartridge receiving port;
b. a cartridge for input to said cartridge receiving port, wherein said cartridge contains a mixture including a water sample comprising an analyte, Raman-scattering nanoparticles and a calibration solution, wherein said calibration solution comprises a chemical compound capable of interacting with the analyte and the Raman-scattering nanoparticles; and
c. an optical detection system in said housing, wherein said optical detection system is capable of providing an illuminated electric field, wherein said illuminating electric field is capable of being used for Raman spectroscopy with said Raman-scattering nanoparticles and said calibration solution to analyze said sample under test input to said cartridge,
wherein the chemical compound is selected from the group consisting of thiols, amines, silanes, polymeric particles, metallic particles, crown esters, cysteamine, cystamine, diethylaminethanethiol, mercaptopropionic acid, 1-propanethiol, octanethiol, octyldecanethiol, polystyrene, iron, and silica.