Fumonisin Immunoaffinity HPLC Column
The Fumonisin Immunoaffinity HPLC Column is For Research Use Only
Size: 3ml, 10 columns
Assay Principle
This instruction of fumonisins (FB1 / FB2) determination in food and feed focuses on the enrichment step of extract using immunoaffinity column (IAC) and quantification with HPLC. Accepted laboratory extraction methods could be maintained. Full performance of the IAC column is given if pronounced criteria regarding organic solvent tolerance, elution process of analyte and working range of column are followed. Many pretreatment methods of fumonisins determination in food and feed, most of them which are based on solid phase extraction (SPE) with adsorbents or strong anion resins (SAX), show low sensitivity because of interfering substances if problematic matrices are applied.
This method of content determination of fumonisins combines the high selectivity of an immunoaffinity column (IAC) with its potential to concentrate elute and additional step of purification of derivatized fumonsins by HPLC column. As said before, this instruction focuses on the handling with the IAC column. For the commodity extraction step a literature method is given. Please see below. The given apparatus (e.g. HPLC system) might serve as example among other possibilities. For your convenience, an example HPLC method for the analysis of fumonisins is given below.
Sample Preparation:
Samples which content of Fumonisins are to be analyzed, e.g. wheat, maize etc., are extracted by the method of Prioli et al. using methanol-water (80/20 v/v) as extraction solvent.
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Product Developed and Manufactured in Germany by BioTeZ Berlin-Buch GmbH
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保存在巴黎的国际计量局总部国际千克原器，在2007年的一次检查中，发现有118年历史、用铂和铱混合铸造的圆柱形铸件——国际千克原器减轻了大约50毫克。2013年1月初，德国最新一期《计量学》杂志刊载研究报告称，作为标准质量单位的国际千克原器因表面遭污染而略有增重。
由此联想到FDA不承认内置砝码校准的问题，内置砝没有处在“千克原器”的真空、恒温、恒湿的环境，一年四季温度、环境湿度处在不断变化过程，降温和环境湿度增加时，总会有水分子凝结在内置砝码表面。升温和环境湿度下降时，总会有吸附在FDA内置砝码上的水分子解吸附，内置砝码自身的质量本身就是不断波动的过程，这样理解FDA不承认内置砝码的校准是否正确。请明白的战友指正。
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精确称量与天平合规性管理—张忠任2017.8.2
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我在预习天平的使用，这里不懂，谢谢
希望和大家分享这一点小小的经验。
我们公司是生物制药公司，最近购买了一台百万分之一天平，还未校正，想请教各位大牛，百万分之一天平如何校正，是否必须由计量局校正？制药行业有没有相关法规文件规定必须得校正？如果有，麻烦分享一下，谢谢！
请问，临床前研究用的电子天平，需要符合GMP要求吗？需要3Q认证吗？相关数据用于申报临床试验的，谢谢
