Water determination

2020 ◽  
pp. 459-477
Author(s):  
Mohsen Talebi ◽  
Daniel W. Armstrong
Keyword(s):  
Water Determination

Water Determination in Aromatic Sulfonyl Chlorides Using the Karl Fischer Titration Method: Scope and Limitations

2022 ◽  
Vol 7 (2) ◽  
Author(s):  
Olga B. Radchenko ◽  
Dmytro S. Radchenko ◽  
Angelika I. Konovets ◽  
Oleksandr O. Grygorenko
Keyword(s):  
Titration Method ◽  
Karl Fischer Titration ◽  
Water Determination ◽  
Sulfonyl Chlorides ◽  
Karl Fischer

Water Determination

2018 ◽  
Author(s):  
S.A. Margolis ◽  
P.H. Huang ◽  
N.G. Hǎdǎrugǎ ◽  
D.I. Hǎdǎrugǎ
Keyword(s):  
Water Determination

scholarly journals Iron in Well Water: Case Study in Dulalowo and Heledulaa Districts

2020 ◽  
Vol 2 (2) ◽  
pp. 46-52
Author(s):  
Hendri Iyabu ◽  
Anita Muhammad ◽  
Jafar La Kilo ◽  
Akram La Kilo
Keyword(s):  
Water Samples ◽  
Iron Concentration ◽  
Well Water ◽  
Iron Level ◽  
Water Determination ◽  
Drinking Water Standard ◽  
Water Wells ◽  
Fe Content

This study aims to determine the iron content of water wells in Dulalowo and Heledulaa, Gorontalo City. Ten well water samples were taken randomly from five different wells in each district. Water samples at each well consist of top, middle, and bottom water. Determination of iron level using Atomic Absorption Spectrophotometer (AAS) at a wavelength of 248.33 nm. The results showed that the iron concentration of well water in Dulalowo was 0.030 (D1), 0.265 (D2), 0.224 (D3), 0.158 (D4), 0.149 ppm (D5). Meanwhile, iron levels in Heledulaa were 0.100 (H1), 0.039 (H2), 0.159 (H3), 0.198 (H4), and 0.235 ppm (H5). These results prove that the Fe content in the well water in the two districts is still fulfil the drinking water standard which is a maximum of 0.3 mg/L iron.

scholarly journals Penentuan Konsentrasi Efektif Ekstrak Tanaman Patikan Kebo (Euphorbia Hirta) Merah Dan Hijau Dalam Melarutkan Kalsium

2018 ◽  
Vol 6 (4) ◽  
pp. 208
Author(s):  
Hamdiana Hamdiana ◽  
Minarni Rama Jura ◽  
Ratman Ratman
Keyword(s):  
Calcium Phosphate ◽  
Kidney Stones ◽  
Laboratory Experiments ◽  
Effective Concentration ◽  
Distilled Water ◽  
Water Determination ◽  
Euphorbia Hirta ◽  
Flame Photometer

The use of traditional materials is one alternative for the treatment of kidney stones. One of them is utilizing a plant of patikan kebo (Euphorbia hirta). This study is conducted by using laboratory experiments and the extract of the plant of patikan kebo red and patikan kebo green to dissolve the calcium phosphate as a substitute for kidney stones. The extraction of samples is conducted by decoction. The aim of the study is to determine the effective concentration of the extracts of patikan kebo red and green to dissolve calcium and test the effectiveness of the extracts of patikan kebo to dissolve calcium compared to Batugin elixir and distilled water. Determination of the concentration of dissolved calcium in the extracts using a flame photometer. The results show that the extract of patikan kebo red with a concentration of 2.1% is effective in dissolve the calcium with a concentration of 5.2 ppm. The extract of patikan kebo green with a concentration of 27.4% is effective in dissolving the calcium with a concentration of 27.5 ppm. When compared with Batugin elixir and distilled water, Batugin elixir can only dissolve the calcium with concentration 15.3 ppm, while distilled water can only dissolve 3 ppm of the calcium.

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