An extractive-photometric method is described for routine analysis of nitrate pollution in natural water. The compound formed by nitrate with crystal violet was quantitatively extracted into o-dichlorobenzene solvent and the absorbance has been measured at 593 nm. The determination was possible in presen...
Sachin Madhavrao KanawadeS. M. Kanawade, ―Use of natural zeolite for treating drinking water containing excess amount of nitrate,‖ International Journal of Multidisciplinary Research and Development, vol. 2, Issue 4, pp. 336 - 345, April 2015....
An improved rapid method of extraction-photometric determination of trace amounts of nitrate and nitrite in water has been developed. In this method, nitrate is quickly reduced to nitrite at pH 3.0 in 5 min with freshly prepared cadmium sponge, which is produced in situ by action of zinc ...
aNitrate Vulnerable Zones, covering approximately 70% of England since 2009, require that farmers take specific measures to reduce the amount of nitrates that run-off into water courses 硝酸盐脆弱的区域,包括大约70%英国自2009年以来,要求农夫采取具体措施减少决赛到水里追猎的数量硝酸盐 [translate] ...
What effect would drinking a pitcher of Sports drink (like Gatorade) have on ADH levels? A. Increase B. Decrease C. No effect What are the effects of depression on metabolism, specifically? Does depression slow down metabolism? What is the role of nitrate in microbial metabolism? What cou...
It has been found in groundwater, drinking water, and soils, mainly in the southwestern United States, at levels ranging from 8 to 3700 ppb. Perchlorate affects the thyroid gland by blocking iodine uptake resulting in lower thyroid hormone levels. There is a need for an improved perchlorate ...
根据第三段中"Sunlight acts as a catalyst for a process that turns the nitrogen oxides into water,small amounts of CO2 and calcium nitrate(在将氮氧化物转化为水、少量二氧化碳和硝酸钙的过程中,阳光充当了催化剂)"可知,在这个过程中,阳光的作用必不可少。故选A。(3)A.观点态度题。根据...
A METHOD FOR THE DETERMINATION OF MINUTE AMOUNTS OF ETHYL IODIDE IN AIR, WATER, AND BLOOD BY MEANS OF ITS REACTION WITH SILVER NITRATE; AND EXPERIMENTS BEARING ON THE DETERMINATION OF BLOOD FLOW BY MEANS OF ETHYL IODIDE I Starr,CJ Gamble - 《Journal of Biological Chemistry》 ...
Another survey which took samples of drinking water and groundwater an 69 small towns。 in Beijing Tianjin and Hebei Province of North,China showed that more than half of the water contains too much nitrate(硝酸盐),which may cause diabetes(糖尿病)and damage the kidney. The administration ...
Sulfuric Acid Production To create sulfuric acid the long used (since 1749), and little understood, Lead-Chamber Method (see Lead-Chamber below) required air, water, sulfur dioxide, a nitrate, and a large lead container. Of these ingredients the nitrate was frequently the most expensive. This...