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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1952 1
1955 1
1957 2
1958 1
1959 2
1960 1
1964 1
1965 2
1966 3
1967 4
1968 1
1972 1
1974 1
1975 4
1976 5
1977 2
1979 4
1980 2
1981 3
1982 1
1983 4
1984 4
1985 2
1986 2
1988 1
1989 1
1990 1
1991 3
1992 2
1993 1
1994 2
1995 3
1996 2
1998 2
2001 4
2002 1
2003 1
2004 2
2005 2
2006 1
2007 3
2009 1
2010 1
2012 4
2013 3
2014 2
2015 4
2016 2
2018 5
2019 3
2020 1
2021 3
2022 1
2023 2
2024 0

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110 results

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Page 1
Smartphone-Enabled Quantification of Potassium in Blood Plasma.
Hidayat AS, Horino H, Rzeznicka II. Hidayat AS, et al. Sensors (Basel). 2021 Jul 12;21(14):4751. doi: 10.3390/s21144751. Sensors (Basel). 2021. PMID: 34300494 Free PMC article.
The method is based on turbidity measurement of blood plasma solutions in the presence of sodium tetraphenylborate, a known potassium precipitating reagent. The images obtained by a smartphone camera are analyzed by a custom image-processing algorithm which enables …
The method is based on turbidity measurement of blood plasma solutions in the presence of sodium tetraphenylborate, a known potass …
Stalagmometric titrations.
Kambara T, Kiba T. Kambara T, et al. Talanta. 1972 Apr;19(4):399-406. doi: 10.1016/0039-9140(72)80101-2. Talanta. 1972. PMID: 18961068
The drop-time of a polarographic dropping mercury electrode in open circuit is plotted against volume of surface-active titrant added, and shows a break or a peak at the end-point. The stalagmometric titration of sodium tetraphenylborate with Zephiramine (tetradecyldimethy …
The drop-time of a polarographic dropping mercury electrode in open circuit is plotted against volume of surface-active titrant added, and s …
Colorimetric ionophore-based coextraction titrimetry of potassium ions.
Thajee K, Wang L, Grudpan K, Bakker E. Thajee K, et al. Anal Chim Acta. 2018 Oct 31;1029:37-43. doi: 10.1016/j.aca.2018.05.012. Epub 2018 May 7. Anal Chim Acta. 2018. PMID: 29907288
This is because potassium can be readily complexed in a selective and thermodynamically stable manner by ionophores such as valinomycin. ...This problem is overcome here by a co-extraction based approach, with the sodium salt of the water soluble lipophilic anion tetrap …
This is because potassium can be readily complexed in a selective and thermodynamically stable manner by ionophores such as valinomyc …
Exploring the potential of phyllosilicate minerals as potassium fertilizers using sodium tetraphenylboron and intensive cropping with perennial ryegrass.
Li T, Wang H, Wang J, Zhou Z, Zhou J. Li T, et al. Sci Rep. 2015 Mar 18;5:9249. doi: 10.1038/srep09249. Sci Rep. 2015. PMID: 25782771 Free PMC article.
In response to addressing potassium (K) deficiency in soil and decreasing agricultural production costs, the potential of K-bearing phyllosilicate minerals that can be directly used as an alternative K source has been investigated using sodium tetraphenylboron (NaTP …
In response to addressing potassium (K) deficiency in soil and decreasing agricultural production costs, the potential of K-bearing p …
Determination of potassium by titrimetry.
Iwachido T. Iwachido T. Talanta. 1966 Mar;13(3):341-6. doi: 10.1016/0039-9140(66)80051-6. Talanta. 1966. PMID: 18959886
This simplified the procedure, increased the rapidity and lessened the sources of error. With samples containing various ions except ammonium ion, potassium (conc. of KCl 0.25 to 1.8 x 10(-2)M) was determined within 0.4% of error, by means of corrections for the existence …
This simplified the procedure, increased the rapidity and lessened the sources of error. With samples containing various ions except ammoniu …
Modified titration of potassium.
Iwachido T. Iwachido T. Talanta. 1966 Dec;13(12):1697-9. doi: 10.1016/0039-9140(66)80255-2. Talanta. 1966. PMID: 18960059
A simplified titrimetric method for potassium is proposed. In the usual method, potassium is precipitated by sodium tetraphenylborate and the excess of the reagent is back-titrated with a quaternary ammonium salt, but the precipitate must be removed to preven …
A simplified titrimetric method for potassium is proposed. In the usual method, potassium is precipitated by sodium tetraph …
Establishing grading indices of available soil potassium on paddy soils in Hubei province, China.
Li X, Zhang Y, Wang W, Khan MR, Cong R, Lu J. Li X, et al. Sci Rep. 2018 Nov 6;8(1):16381. doi: 10.1038/s41598-018-33802-3. Sci Rep. 2018. PMID: 30401961 Free PMC article.
Soil testing is an important diagnostic tool for assessing crop-available soil potassium (K) and hence making appropriate fertilizer recommendation. This study was aimed at correlating grain yield response data to soil-test K extracted with ammonium acetate (NH(4)OAc), col …
Soil testing is an important diagnostic tool for assessing crop-available soil potassium (K) and hence making appropriate fertilizer …
110 results