Study of Analysis Method on Microplastic Identification in Bottled Drinking Water

2020 ◽  
Vol 391 (1) ◽  
pp. 1900195 ◽  
Author(s):  
Zarlina Zainuddin ◽  
Syuhada
Keyword(s):  
Drinking Water ◽  
Analysis Method ◽  
Bottled Drinking Water

Analysis Product Quality and Price on Purchase Decision of Drinking Water in Packaging Aqla

2020 ◽  
Vol 1 (2) ◽  
pp. 102-108
Author(s):  
Andi Dewi Aulia Mallombasang ◽  
Reni Furwanti ◽  
Adrianus Aprilius
Keyword(s):  
Drinking Water ◽  
Product Quality ◽  
Positive Influence ◽  
Test Results ◽  
Water Industry ◽  
University Management ◽  
Analysis Method ◽  
Purchasing Decisions ◽  
Community Needs ◽  
Bottled Drinking Water

The bottled drinking water industry is growing due to the increasing level of community needs. So the company must make a marketing strategy in order to survive and win competitors. The population in this study were 464 consumers majoring in musamus university management and determining the sample using the Slovin formula was a sample of 61 people. data collection using a questionnaire. The method used is multiple linear analysis method. Test results prove that product quality and price have a positive influence on purchasing decisions. This should be a concern for management CV Tirta Alam Jaya Merauke will be quality products and prices because it affects the purchasing decision.

scholarly journals Implementation of Sales Forecasting Method In Production Planning In Cv Tirta Alam Jaya Merauke

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Marlyn Eleida Alfons ◽  
Semuel Batlajery
Keyword(s):  
Drinking Water ◽  
Production Planning ◽  
Error Rate ◽  
General Equation ◽  
Decomposition Method ◽  
Linear Trend ◽  
Analysis Method ◽  
Bottled Drinking Water ◽  
Forecasting Method ◽  
Linear Trend Analysis

The problem to be studied is how the sales forecasting method is applied in the company and what variables influence sales forecasting. with the aim, for the company can apply optimal sales forecasting method for the survival of the company and know the variables that affect sales forecasting. In this study the data obtained then tested by the following methods: (1) Linear Trend Analysis Method, General equation form (Sofyan Assauri, 1984, pp. 53-56): Y = a + bt, (2) Method of Exponental Trends (a) Constant, with forecasting function: (b) Linear, with the logarithmic method, Y = a + b log t The function of this method is: forecasting function: Y_t = a + bt and (4) Decomposition Method. Result of research The best forecasting method to predict the sales of bottled drinking water in CV Tirta Alam Jaya Merauke in the next period, is the method of Exponental Trend. This method is chosen because it has the lowest error rate value when compared with other forecasting method, that is for forecasting sales Bottled drinking water obtained MAD value of 932.65, MSE of 20,581,918.63 and MAPE of 34.94%. Sales forecasting results Bottled drinking water using Exponental trend method calculation is 14,104 Carton in January 2016

Production of 2-Methyliso-Borneol by Two Benthic Cyanophyta

1983 ◽  
Vol 15 (6-7) ◽  
pp. 211-220 ◽  
Author(s):  
G Izaguirre ◽  
C J Hwang ◽  
S W Krasner ◽  
M J McGuire
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Drinking Water ◽  
Closed Loop ◽  
Water Supply Systems ◽  
Source Water ◽  
Analysis Method ◽  
Sediment Samples ◽  
Taste And Odor ◽  
Supply Systems

Two Oscillatoria strains have been isolated from three different water supply systems in California that have experienced taste and odor problems in their drinking water. The algae were obtained from sediment samples and rock scrapings from source-water reservoirs. Unialgal cultures, free of actinomycetes, were purged using the closed-loop stripping analysis method, and the resulting extracts were analyzed by gas chromatography and mass spectrometry. The organisms, Oscillatoriacurviceps and O.tenuis variant levis Gardner, yielded 2-methylisoborneol (MIB) at 60–150 µg/l. In both instances, MIB had previously been identified in the sediment samples from which the organisms were isolated. O.curviceps was implicated in a taste and odor episode involving MIB in a major reservoir during two consecutive summers.

PROBLEMS OF QUALITY AND SAFETY OF BOTTLED DRINKING WATER

2018 ◽  
Author(s):  
Л.И. АМБАРЦУМЯН ◽  
Е.Н. ГУБА ◽  
М.В. ГУСЕВА ◽  
С.Н. ДИЯНОВА ◽  
В.В. ИЛЛАРИОНОВА
Keyword(s):  
Drinking Water ◽  
Chemical Composition ◽  
Water Samples ◽  
Quality And Safety ◽  
Testing Laboratory ◽  
Bottled Drinking Water ◽  
Microelement Composition ◽  
Microbiological Indicators

Проведены исследования качества 12 образцов питьевой бутилированной воды в условиях аккредитованной испытательной лаборатории. Исследование информативности маркировки образцов воды выявило, что не все производители выполняют требования ТР ТС 022/2011. Дана оценка органолептических, физико-химических и микробиологических показателей питьевой воды. Определены критерии безвредности химического состава образцов. Исследован макро- и микроэлементный состав. Выявлена необходимость повышения степени ответственности производителей при формировании качества. The quality of 12 samples of bottled drinking water was studied in an accredited testing laboratory. The study of informative labeling of water samples revealed that not all manufacturers fulfill the requirements of TR TS 022/2011. The evaluation of organoleptic, physicochemical and microbiological indicators of drinking water is given. Criteria of harmlessness of the chemical composition of samples are defined. It is investigated macro- and microelement composition of drinking water. The necessity to increase the degree of responsibility of producers in the formation of quality is revealed.

scholarly journals Tracing atmospheric nitrate in groundwater using triple oxygen isotopes: evaluation based on bottled drinking water

2012 ◽  
Vol 9 (11) ◽  
pp. 16493-16519
Author(s):  
U. Tsunogai ◽  
A. Suzuki ◽  
S. Daita ◽  
T. Ohyama ◽  
D. D. Komatsu ◽  
...  
Keyword(s):  
Drinking Water ◽  
Oxygen Isotopes ◽  
Significant Role ◽  
Mixing Ratio ◽  
Natural Background ◽  
Bottled Drinking Water ◽  
Groundwater Samples ◽  
Stable Isotopic ◽  
Atmospheric Nitrate ◽  
Forested Areas

Abstract. The stable isotopic compositions of nitrate dissolved in 49 types of bottled drinking water collected worldwide were determined, to trace the fate of atmospheric nitrate (NO3–atm) that had been deposited into subaerial ecosystems, using the 17O anomalies (Δ17O) of nitrate as tracers. The use of bottled water enables collection of groundwater recharged at natural, background watersheds. The nitrate in groundwater had small Δ17O values ranging from −0.2‰ to +4.5‰ (n = 49). The average Δ17O value and average mixing ratio of atmospheric nitrate to total nitrate in the groundwater samples were estimated to be 0.8‰ and 3.1%, respectively. These findings indicated that the majority of atmospheric nitrate had undergone biological processing before being exported from the surface ecosystem to the groundwater. Moreover, the concentrations of atmospheric nitrate were estimated to range from less than 0.1 μmol l−1 to 8.5 μmol l−1, with higher NO3–atm concentrations being obtained for those recharged in rocky, arid or elevated areas with little vegetation and lower NO3–atm concentrations being obtained for those recharged in forested areas with high levels of vegetation. Additionally, many of the NO3–atm-depleted samples were characterized by elevated δ15N values of more than +10‰. Uptake by plants and/or microbes in forested soils subsequent to deposition and the progress of denitrification within groundwater likely plays a significant role in the removal of NO3–atm.

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