The proposed method overcame the deficiencies of the standard method. By measuring the total hardness in surface water, groundwater and standard samples using the standard method and the improved method, the results had no significant differences. Key words: EDTA titration total hardness water buffer...
This methodology was applied to the determination of water total hardness by EDTA titration. The repeatability of the end-point detection was estimated by the difference between repeatability obtained from replicate titrations of the same solution and the combined repeatability of the measurements of ...
total hardness 美 英 un.水的总硬度;硬度总 英汉 网络释义 un. 1. 水的总硬度 2. 硬度总 例句 释义: 全部,水的总硬度,硬度总 更多例句筛选
Method:EDTA method;Test Range:10-200mg/L;Classification:Other;Customized support:OEM;Place of Origin:CN;GUA;Brand Name:HKM;Model Number:090043;|Alibaba.com
select article Cation-exchange fibers and silver nanoparticles-modified carbon electrodes for selective removal of hardness ions and simultaneous deactivation of microorganisms in capacitive deionization Research articleAbstract only Cation-exchange fibers and silver nanoparticles-modified carbon electrodes for selec...
Apell JN, Boyer TH (2010) Combined ion exchange treatment for removal of dissolved organic matter and hardness. Water Res 44(8):2419–2430 ArticleGoogle Scholar APHA (1999) Standard methods for the examination of water and wastewater, 20th edn. American Public Health Assoc Press, Washington DC...
A potentiometric determination of the total water hardness by flow-injection analysis is proposed, which uses both a CU2+ ion-selective electrode detector and a Cu2+-ion buffer stream comprising a Cu-EDTA complex and free EDTA. This method is based on potentiometric monitoring of the change in...
In the framework of the ongoing EMPIR Joint Research Project (JRP) 17IND13 Metrology for real-world domestic water metering (Metrowamet), a main task is to investigate the influence of realistic operation conditions, that is, typical water qualities (suspended particles, degree of hardness, and...
Analogically, there is no single parameter for antioxidant status of food and biological fluids that corresponds to the widely accepted 'French hardness parameter' of water, defined as the mg-amount of CaCO3-equivalent hardness per 100 mL of water. Everybody understands the same meaning from a ...