US 11,965,838 B2
Portable assessment kit and method for measuring metal content of aqueous solution
Tuomo Nissinen, Kuopio (FI); Tommi Tiihonen, Kuopio (FI); Joakim Riikonen, Kuopio (FI); Vesa-Pekka Lehto, Siilinjärvi (FI); and Pekka Savolahti, Vantaa (FI)
Assigned to 3AWater Oy, Kuopio (FI)
Appl. No. 17/627,182
Filed by 3AWater Oy, Kuopio (FI)
PCT Filed Jul. 13, 2020, PCT No. PCT/EP2020/069789
§ 371(c)(1), (2) Date Jan. 14, 2022,
PCT Pub. No. WO2021/013612, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 20195649 (FI), filed on Jul. 23, 2019.
Prior Publication US 2022/0268716 A1, Aug. 25, 2022
Int. Cl. G01N 23/223 (2006.01); G01N 1/14 (2006.01); G01N 1/40 (2006.01); G01N 33/18 (2006.01)
CPC G01N 23/223 (2013.01) [G01N 1/14 (2013.01); G01N 1/405 (2013.01); G01N 33/18 (2013.01); G01N 2223/076 (2013.01); G01N 2223/507 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A portable assessment kit for measuring metal content of an aqueous solution, the portable assessment kit comprising:
a sample container for containing a sample of the aqueous solution to be assessed, wherein the sample container comprises an opening at its first end for receiving the sample;
a disc holder having a first end, and a second opposite to the first end, wherein the first end of the disc holder is detachably attached to the opening of the sample container;
a permeable pre-concentration disc for collecting metals, the pre-concentration disc having a first side, and a second side opposite to the first side, and being arrangeable in the disc holder;
means for pumping the sample of the aqueous solution through the opening of the sample container to the first side of the pre-concentration disc and through the pre-concentration disc; and
measurement device for measuring amount of metals in the pre-concentration disc, the measurement device being arrangeable in connection with the disc holder in such a manner that the first side of the pre-concentration disc is facing the measurement device,
wherein the disc holder comprises a first part having the first end for detachably attaching the disc holder to the opening of the sample container, and the disc holder further comprises a second part and a third part, wherein the pre-concentration disc is arranged between the second part and the third part in a manner that the first side of the pre-concentration disc is facing the second part of the disc holder and the second side of the pre-concentration disc is facing the third part of the disc holder.