资料摘要
资料下载Phenylketonuria (PKU) is a genetic inborn error of metabolism, that is detectable during the first days of life with appropriate blood testing. The absence or deficiency of an enzyme that is responsible for processing the essential amino acid phenylalanine characterizes PKU. Without treatment, most infants with PKU develop mental retardation. Early detection of PKU can allow patient treatment to prevent mental retardation, as well as other associated problems. Treatment consists of a carefully-controlled pherestricted diet begun during the first days or weeks of life. Frequent blood monitoring of PKU patients is necessary, especially during infancy and early childhood when it is important to keep the blood phenylalanine levels at the safest level. Biochrom Amino Acid Analysers are widely used for the routine analysis of phenylalanine. Clinical laboratories have a continuous requirement for analyses of large numbers of samples. Rapid, accurate analysis is critical to meet the demand of the screening programmes. Improvements in peak resolution, accuracy, run times, and quantitation by using a dedicated instrument has enabled clinical laboratories to screen large numbers of samples per week. Using the Biochrom 30 Amino Acid Analyser phenylalanine can be rapidly and accurately quantified using norleucine as internal standard. The separation is carried out using a 20 cm x 4.6 mm high performance physiological column using buffer DII predominantly. The program enables 25 analyses to be performed a day. In addition tyrosine and homocystine are also well resolved thus enabling screening for the other metabolic diseases such as Tyronisis and Homocystinuria.
微库仑法测定废水中的可吸附有机卤素(AOX)和纸浆中的总有机卤素(TOX)
简介:纸浆和纸品工艺过程中用到高浓度的化学物,如氯,二氧化氯和盐酸用来漂白,由此产生的废水包含有机氯化物,这些物质对环境有害,因此废水中可吸附有机卤素AOX和纸浆中的总有机卤素TOX显得尤为重要。
应用指南第一篇:从等温吸附线中可以获得什么信息?
简介:比表面和孔径测量: Microtrac MRB采用气体吸附法为粉体样品的比表面值,BET值和孔径测量提供了吸附系列的分析仪器。开发和生产以及装配地点位于日本大阪的表面分析中心。 我们为客户提供先进的技术,以不断获得可靠的结果。创新和质量是我们成功的基础。
应用指南3:通过BET方法分析活性炭的比表面积(I型等温吸脱附曲线)
简介:比表面和孔径测量: Microtrac MRB采用气体吸附法为粉体样品的比表面值,BET值和孔径测量提供了吸附系列的分析仪器。开发和生产以及装配地点位于日本大阪的表面分析中心。 我们为客户提供先进的技术,以不断获得可靠的结果。创新和质量是我们成功的基础。
R1_No.2_ENG_TheevaluationoftheSpecificsurfaceareaofporousSilicabyBETmethod
简介:比表面和孔径测量: Microtrac MRB采用气体吸附法为粉体样品的比表面值,BET值和孔径测量提供了吸附系列的分析仪器。开发和生产以及装配地点位于日本大阪的表面分析中心。 我们为客户提供先进的技术,以不断获得可靠的结果。创新和质量是我们成功的基础。
R1_No.3_ENG_TheevaluationoftheSpecificsurfaceareaofactivecarbon(TypeIadsorptionisotherm)byBETmethod
简介:比表面和孔径测量: Microtrac MRB采用气体吸附法为粉体样品的比表面值,BET值和孔径测量提供了吸附系列的分析仪器。开发和生产以及装配地点位于日本大阪的表面分析中心。 我们为客户提供先进的技术,以不断获得可靠的结果。创新和质量是我们成功的基础。
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