Tag: Research

Greenhouse Gas Emissions

November 16, 2020 at 3:48 pmCategory:General

Reduce greenhouse gas emissions from 75 countries committed to peace. In Russia, the Days of Protection of Lake Baikal. Renewable energy and biofuels are gaining in popularity. Plastic bags threaten the environment in Brazil. The rate of deforestation has slowed for the first time in history. Date of the week: International Day for the birds. Photo fact of the week: The competition of songbirds. If you would like to know more then you should visit starbucks in new york.

Review of the week from 03.29.2010 to 04.04.2010. Reduce greenhouse gas emissions 75 countries pledged total of 75 participating countries the UN Framework Convention on Climate Change have committed themselves to reduce greenhouse gas emissions by 2020. It should be noted that in these 75 countries account for 80 percent of all greenhouse gas emissions atmosphere. At the same time, 111 countries and the European Union "expressed support for the Copenhagen agreement." Executive Secretary Yvo de Boer convention noted that the commitment is an important step towards the goal of limit the growth of emissions. Negotiation of States Parties in Copenhagen, which ended in December last year, have not led to the emergence of a new document to replace the Kyoto Protocol, which expires in 2012. The next round of climate talks is scheduled for late May and will be held in Bonn. The task of establishing a framework of cooperation of countries to fulfill the obligations of these countries to reduce emissions will addressed at the next meeting of States Parties at the end of the year in Mexico. Meanwhile, in our country Sberbank of Russia initiated the procedure for examining applications made to the competition of investment projects aimed at reducing greenhouse gas emissions under the Kyoto Protocol.

Milk Products

May 23, 2014 at 12:48 pmCategory:General

In September 2008, the international media has leaked information about "different kinds of melamine contamination of food products (milk, infant formula, yogurt, candy, chocolate, tea beverages) in China, Singapore, New Zealand, Hong Kong, the Republic of Korea at concentrations up to 2560 mg / kg "(according to the of Food Safety Authorities (INFOSAN) WHO / FAO). It was noted that melamine was added to the food and animal feed in order to simulate a high protein content – one of the most important indicators of quality, which determine its nutritional value. The classic and still the only universally accepted method for determining protein Arbitration is the method of Kjeldahl (also known as a method for determining total nitrogen by Kjeldahl). Small molecule contains melamine in its structure, six nitrogen atoms, so even a small admixture of a chemical compound capable of create the illusion of a high nutritional value or foods. Thus, an analysis by the Kjeldahl method is nonselective to the nature of the nitrogen atoms, ie Not "see" the difference between the nitrogen of the protein or other origin. In the current situation – falsification of milk and dairy products with melamine – it was necessary to offer a highly selective, sensitive and accurate method for the analysis of melamine.

These methods, in particular, combined separation methods of analysis, including chromatography. On October 1, 2008 in the Russian Federation and approved November 1, 2008 will come into force "Supplement number 11 to SanPiN" according to which no allowed the presence of melamine in food (permissible level – less than 1 mg / kg). To determine the melamine in milk and milk products, the Federal Service for Supervision of Consumer Rights Protection and Human Welfare approved guidelines Municipal 4.1.2420-08 that establish HPLC method. Russian manufacturers of analytical instruments for the implementation of KMC 4.1.2420-08 offer to use their own production equipment, which allows solve the problem effectively, efficiently and economically. For the analysis of melamine is not only used HPLC method, but the method of capillary electrophoresis, which compared to the chromatographic separation is characterized by much higher resolution of the peaks, significantly lower cost than one definition, the absence of speakers, and problems with its replacement, in general, more simple practice of using the equipment while maintaining the same metrological parameters.