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Water Well Articles & Analysis
10 articles found
Ion chromatography and sample filtration go hand-in-hand since this pretreatment step is advised for the majority of sample matrices. It is essential to avoid injecting particles, algae, or bacteria into the IC system, as these can jeopardize both the instrument and the separation column. Samples are often prepared manually, for example by using filtration or centrifugation to remove contaminants ...
ByB&W Tek
There is a learning curve for every prosthetic device, but for first-time users, this can seem daunting. Once fitted with a new prosthesis, users need to re-learn how to perform day-to-day functions and activities and get accustomed to their new hand. Fortunately, learning to use a bionic hand is much easier than it may seem to first-time users. Still, we've pulled together some helpful tips and ...
The reaction system involves solvent system and water phase system. In order to improve the activity and stability of lipase in the reaction, various methods can be used to modify lipase. Lipase can catalyze the hydrolysis, alcoholysis, acidolysis, transesterification and esterification of fatty acid esters, and is widely used in food, chemical, pharmaceutical, textile and ...
Next, the robotic arm will dip and stir these through four exchangeable plastic wells. Slides can be dipped in the fifth drainable water well that ensures water will be renewed after rinsing each slide basket. Last, slides can be fan dried with or without heat. The four reagent wells in the system allow ...
ByIUL S.A.
After rain events in densely populated areas, combined sewer overflows (CSOs) can have severe health-related effects upon surface water quality, as well as diffuse overland runoff and wastewater treatment plants (WWTPs). All of these sources emit pathogens and fecal indicator bacteria into the surface water, which the EU Bathing ...
The objectives of this study were to examine the seasonal changes in the risk of gastrointestinal (GI) illness of beachgoers in the tropics, to compare the association between GI illness and water quality using various indicator organisms, and to study other beach health hazards. ...
The experiment was conducted in field plots covered with a rainout shelter in 2006 and 2007 in North Brunswick, NJ. Treatments consisted of (i) well-watered controls; (ii) drought stress (withholding irrigation) from June to August; and (iii) recovery (rewatering after a period of drought stress) in September and October. ...
The presence of biologically active substances (BAS) in biosolids may enhance plant stress tolerance and growth, but the underlying mechanisms are not well understood. This greenhouse study investigated the effects of untreated biosolids, containing 2.1 µg indole-3-acetic acid (IAA) g–1, and tryptophan-treated biosolids, containing 15.4 µg IAA g–1, on tall fescue [Lolium ...
Arsenic from drinking water is a well-known risk factor for bladder cancer. The purpose of this paper is to systematize some important yet often overlooked facts considering the relationship between arsenic exposure and the occurrence of bladder cancer. Since the exposure to inorganic arsenic from food, inhaled air, and skin absorption as well as ...
High levels of fluoride (beyond 1.5 ppm) in ground water as source of drinking water are common in many parts of Andhra Pradesh, India, causing fluorosis. The study carried out in endemic Nalgonda District, Andhra Pradesh, has indicated that the fluoride-rich ground water present in the wells located down stream and close to the ...