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.

Flow injection spectrophotometric determination of calcium, phosphate and chloride ions in milk

The Analyst ◽  
1992 ◽  
Vol 117 (6) ◽  
pp. 1019 ◽  
Author(s):  
Ma Asunci�n Herrero ◽  
Julia Atienza ◽  
Angel Maquieira ◽  
Rosa Puchades
Keyword(s):  
Calcium Phosphate ◽  
Spectrophotometric Determination ◽  
Flow Injection ◽  
Chloride Ions

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 Badanie stabilności barwnych znaczników fluorescencyjnych w silnie zasiarczonych wodach złożowych

Nafta-Gaz ◽  
2021 ◽  
Vol 77 (2) ◽  
pp. 82-91
Author(s):  
Katarzyna Wojtowicz ◽  
Keyword(s):  
Standard Deviation ◽  
Relative Standard Deviation ◽  
Rhodamine B ◽  
Water Reservoir ◽  
Distilled Water ◽  
Test Results ◽  
Fluorescent Tracers ◽  
Reservoir Water ◽  
Relative Standard

The article presents the issues related to the determination of colored fluorescent tracers such as fluorescein, eosin yellowish, rhodamine B and uranine in reservoir waters by spectrophotometric method. For this purpose, the influence of the pH of the solution on the absorption spectra of the tested tracers was checked. Test results show that fluorescein, rhodamine B and uranine are sensitive to changes in the buffer pH, therefore it is advisable to use stable tracer solutions as well as to control and possibly correct pH in further tests. As part of the study, calibration curves of fluorescein, eosin yellowish, rhodamine B and uranine in distilled water, reservoir water A4 and highly sulfated reservoir waters A5 and A6 were plotted and the analytical methods were validated. Analytical validation included determination of linearity, standard deviation and relative standard deviation of the tested tracers solutions. High values of the regression parameters (0.9927–0.9998) of the analyzed tracers prove a good linear fit, while low values of standard deviation and relative standard deviation prove its repeatability and precision. Particular attention was paid to testing the stability of colored fluorescent tracers in highly sulfated reservoir waters. For this purpose, solutions of the tested tracers were prepared at concentrations of 10 mg/dm3 in distilled water, A4 reservoir water and highly sulfated A5 and A6 reservoir waters. Measurements of the tested tracers in the prepared solutions were performed every 2 days over the period of 1 month. The test results show that fluorescein, eosin yellowish, rhodamine B and uranine solutions are stable in the distilled water and A4 reservoir water, while they degrade in the A5 and A6 reservoir waters. Fluorescein and uranine turned out to be the most sensitive, as they degraded completely in the A6 reservoir water after 20 (fluorescein) and 22 (uranine) days. Yellowish eosin and rhodamine B turned out to be slightly more stable in highly sulfated reservoir waters, as they degraded completely in the A6 reservoir water after 24 days.

Determination of potassium in food using the Technicon AutoAnalyzer flame photometer and Solid Prep sampler

1967 ◽  
Vol 15 (3) ◽  
pp. 408-411 ◽  
Author(s):  
Ronnie V. Smith ◽  
Leonard L. Ciaccio ◽  
Robert L. Lipchus
Keyword(s):  
Flame Photometer
Sign in / Sign up

Export Citation Format

Share Document