蜂蜜2015版药典修订

artel移液器校准器使用方法介绍

简介：Pipettes are the most frequently used instruments in the laboratory, yet they are often overlooked. Their performance is key to every sample dispense, dilution, and assay result, and is critical for generating reliable data. Pipetting accuracy and precision can be compromised by mechanical or electronic failure, misadjustment, and laboratory environment, as well as poor technique. Every one of these issues can be avoided by using the Artel PCS Pipette Calibration System. PCS provides fast, automatic pipette calibration, interim performance verification, complete documentation and data management — and it’s an ideal tool for improving pipetting proficiency.

原理及使用介绍

简介：CTLW系列器皿清洗机，通过PLC控制高压水360°全方位多角度对物品进行冲洗，并控制水温、冲洗时间和冲洗次数等，并配置消毒和干燥出路系统。

无管道自净型产品介绍

简介：无管道自净型储药柜、通风橱和万向通风罩的产品、工作原理以及应用的介绍，自净型产品的优势，对实验室环境的改善起到至关重要的作用。

SERS Large-Area Raman Mapping

简介：Surface-enhanced Raman spectroscopy (SERS) has been used in a variety of biological applications due to its high sensitivity and specificity. Here, we report a SERS-based biosensing approach for quantitative detection of biomolecules. A SERS substrate bearing gold-decorated silicon nanopillars is functionalized with aptamers for sensitive and specific detection of target molecules. In this study, TAMRA-labeled vasopressin molecules in the picomolar regime (1 pM to 1 nM) are specifically captured by aptamers on the nanostructured SERS substrate and monitored by using an automated SERS signal mapping technique. From the experimental results, we show concentration-dependent SERS responses in the picomolar range by integrating SERS signal intensities over a scanning area. It is also noted that our signal mapping approach significantly improves statistical reproducibility and accounts for spot-to-spot variation in conventional SERS quantification. Furthermore, we have developed an analytical model capable of predicting experimental intensity distributions on the substrates for reliable quantification of biomolecules. Lastly, we have calculated the minimum needed area of Raman mapping for efficient and reliable analysis of each measurement. Combining our SERS mapping analysis with an aptamer-functionalized nanopillar substrate is found to be extremely efficient for detection of low-abundance biomolecules.