STUDIES REGARDING THE DETERMINATION OF NITRITE IONS CONCENTRATION IN THE DUMBRAVITA AREA DRINKING WATER (FOUNTAIN WATER)

2020 ◽  
Vol 34 (1) ◽  
pp. 39-48
Author(s):  
Aurica Pop ◽  
Keyword(s):  
Drinking Water ◽  
Sodium Nitrate ◽  
Water Samples ◽  
Ammonium Ion ◽  
Measuring Device ◽  
Nitrate Ions ◽  
Method Selection ◽  
Nitrite Nitrogen ◽  
The Village

The paper showcases studies conducted in order to determine the existence of nitrate ions in the drinking water (fountain water) of a common household from the village of Dumbravita, Maramures County, Romania, as well as to determine the Romplumb S.A. wastewater ammonium ion. A Hanna Instruments photo colorimeter for boilers and cooling cannons was used in order to determine the nitrate ions concentration, which is a compact and versatile measuring device that can measure absorption and pH/mV, as well as a HR Hanna Nitrite photometer. Determining the ammonium ion was possible with the help of a multi parameter photo colorimeter, which employs the CAL Check function. In order to determine de nitrate ions concentration in the water samples, a photo colorimeter which employs the "Method selection"," Zero", "Read" and "Timers" functions was used. Using the "Nitrite LR" method, the device displays de nitrite-nitrogen (NO2--N) concentration measured in gg/l, and by accessing the secondary functions using the Chem Frm key, the result can be converted in gg/l of nitrite (NO2-) and sodium nitrate (NaNO2).

STUDIES CONCERNING THE DETERMINATION OF CALCIUM AND MAGNESIUM IONS IN THE DUMBRAVITA AREA DRINKING WATER (FOUNTAIN WATER)

2020 ◽  
Vol 34 (1) ◽  
pp. 17-24
Author(s):  
Aurica Pop ◽  
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Photometric Method ◽  
Magnesium Ions ◽  
Precise Analysis ◽  
Calcium And Magnesium ◽  
Cost Efficient ◽  
Calcium And Magnesium Ions

The paper showcases research conducted with the purpose of determining the Ca2+ and Mg2+ ions in the drinking water (fountain water) of a common household located in Dumbravita, Maramures County, Romania. The photometric method was used for this goal, as well as a Calcium and Magnesium Photometer. This study argues about implementing cost efficient techniques and precise analysis in order to determine Ca and Mg ions in the water samples.

A method for the determination of residual beta activity in drinking water samples

2007 ◽  
Vol 42 (8) ◽  
pp. 1392-1396
Author(s):  
R. Idoeta ◽  
M. Herranz ◽  
A. Abelairas ◽  
F. Legarda
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Beta Activity ◽  
Drinking Water Samples

scholarly journals The Study of the Drinking Water Quality from the Local Sources, Busu Village, Dolj County and of the Physical and Chemical Determinations

2018 ◽  
Vol 1 (1) ◽  
pp. 212-215
Author(s):  
Olimpia Pandia ◽  
Ion Sărăcin ◽  
Eliza Ștefania Tănasie
Keyword(s):  
Drinking Water ◽  
Chemistry Laboratory ◽  
Total Hardness ◽  
Limit Values ◽  
Chemical Indicators ◽  
Local Sources ◽  
Physical And Chemical ◽  
The Village

Abstract In the present paper, the authors refer to a study carried out in the village of Greceşti, Busu village, Dolj County, on the quality of drinking water from local sources (wells, wells and wells) and the comparison of these results with the limit values allowed by the legislation in force, namely Law 458/2002 and Law 311/2004, as well as the Water Framework Directive and the Groundwater Directive 118/2006 / EC. Organoleptic indicators, physical and chemical indicators from 10 distinct locations as source of harvested water were determined, where organoleptic indicators were determined by determination of taste and odour; physical indicators, determining the pH, colour, turbidity and total hardness; chemical indicators: ammonium, chlorides, oxidisability, nitrites. The determinations were made in the faculty’s agro-chemistry laboratory, using appropriate methods and equipment. Following the results, the causes leading to the results were established and a series of conclusions and recommendations were drafted.

scholarly journals Rapid determination of iodine content in drinking water by isopropyl sensitization and inductively coupled plasma mass spectrometry (ICP-MS)

2021 ◽  
Vol 245 ◽  
pp. 03004
Author(s):  
Yanxia Zeng ◽  
Xiashi Zhu
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Inductively Coupled Plasma ◽  
Rapid Determination ◽  
Internal Standard ◽  
Iodine Content ◽  
Ammonia Solution ◽  
Standard Curve ◽  
Icp Ms

A subject for the rapid determination of iodine content in drinking water by isopropyl sensitization and ICP-MS was established. The samples were dissolved in 1% ammonia solution, 127I was selected as the mass number to be measured and 159Tb as an internal standard. At the same time, 4% (V/V) isopropanol was used to enhance aerosol gasification efficiency, 2% NH3·H2O was used to effectively eliminate memory effects of iodine by cleaning sample for 180 seconds. The results show that, the detection limits of iodine in this method are 0.007 mg·kg-1 and it is superior to other literature. The standard curve has a good linear relationship and the recovery rates of testing rusults range are from 96.00% to 112.3%. The content of iodine in standard substance water samples was determined by ICP-MS method. The iodine content in water samples from seven drinking water sources in Lianyungang area was analyzed between 14~21 μg·L-1. It was in line with the allowable value of 10~300 μg·L-1 of the sanitary standard for drinking water, suggesting that the iodine content of drinking water resources in Lianyungang area was in a safe range.

scholarly journals Analysis of Chloride Levels in Well and PDAM Water in Ngelom Village, Sidoarjo

2019 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
Khoirul Ngibad ◽  
Dheasy Herawati
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Chloride Ions ◽  
Well Water ◽  
Inorganic Anion ◽  
Titration Method ◽  
Red Color ◽  
Standard Solution ◽  
Maximum Threshold

<p>Chloride is an anion that dissolves easily in water samples and it is the main inorganic anion founded in water samples. Excess of chloride ions in drinking water can damage the kidneys. The aims of this study is to determine chloride levels in well and PDAM water samples in Ngelom Village. Determination of chloride levels in water samples using the Mohr argentometric titration method. The samples used was well water and PDAM water, each was taken from 20 locations in Ngelom Village. The samples were mixed with K<sub>2</sub>CrO<sub>4</sub> indicator and then were titrated using the silver nitrate standard solution until the end point of the titration was marked with a brick red color. The results of the analysis of chloride levels in well water of 92 to 491 mg/L and in PDAM of 57 to 230 mg/L. Based on these results, it can be concluded that chloride levels in both well water and PDAM water samples were below maximum threshold which appointed in Permenkes RI No. 416/Menkes/Per/IX/1990 (≤600 mg/L).</p>

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