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啤酒中的二氧化硫含量测定含量

使用埃尔曼试剂分光光度法测定啤酒中的二氧化硫(SO2)含量Spectroquant® 亚硫酸盐测试盒分析方法和样品制备。

均苯并四咪唑（HBTM）：一种用于不对称酰基化的通用有机催化剂

作为我们不对称催化产品组合的一部分，我们很自豪地以（R）和（S）对映体形式提供异硫脲有机催化剂均苯并四咪唑（HBTM）。

用于生物学应用的银纳米材料

银纳米材料具有独特的物理、化学以及光学性质，目前正在用于各种的生物应用。

凝血酶因子IIa

凝血酶因子IIa是一种内切丝氨酸蛋白酶，可选择性地裂解纤维蛋白原的Arg -Gly键，形成纤维蛋白并释放纤维蛋白肽A和B。

镍催化剂

从形成碳-碳键的交叉偶联反应，到用兰尼镍催化剂还原富含电子的碳键的反应，镍催化在许多合成转化中起着核心作用。这些镍催化剂具有多种氧化态：镍（0）、镍（II）、镍（III）和镍（IV）。可直接购买的Ni催化剂类型包括：铝镍（Al Ni）合金、水合铵镍、Ni COD、Ni卤化物（氯化物、溴化物、氟化物和碘化物）、Ni环戊二烯基、镍金属、乙酰丙酮化镍和由W.R. Grace and Company生产的兰尼镍催化剂。

药物研发2.0_药物发现_药物代谢_药物分析-默克生命科学

默克致力于开发创新型产品，从专业角度分析制药行业发展，挖掘客户需求。从基础科学研究到审批生产，默克完整、高效的解决方案，能够帮助新药研发的科学家们，加快药物研发速度，解决药物研发中的难题。

MSI检测和IHC

结直肠癌是大多数西方国家居民中普遍发生的疾病，仅次于肺癌。

杂化钙钛矿太阳能电池最新进展

近几十年来，人们对于环境可持续、商业可行的能源的迫切需求，催生并推动了大量致力实现低生产成本、高能效发电系统的研究工作。

Buffer Exchange and Desalting for Affinity Chromatography

How to perform buffer exchange and desalting with Sephadex G-25, HiTrap Desalting columns, or ÄKTAprime plus.

Chiral Disulfonimides for Asymmetric Counteranion-directed Catalysis (ACDC)

Asymmetric counteranion-directed catalysis (ACDC) has a number of valuable applications in enantioselective synthesis.

Homobenzotetramisole (HBTM): A General Organocatalyst for Asymmetric Acylations

We are proud to offer the isothiourea organocatalyst homobenzotetramisole (HBTM) as part of our asymmetric catalysis portfolio in both (R) and (S) enantiomeric forms.

Periodic Table of the Elements

Download the Periodic Table of the Elements with names, atomic mass and number in printable .pdf and image format. Use the periodic table chart by element names in alphabetical order for quick research, reference and lab use.

Performing a Separation with Cytiva Products Based on Protein A

Protein A is derived from a strain of Staphylococcus aureus and contains ﬁve regions that bind to the Fc region of IgG. As an afﬁnity ligand, protein A is coupled to Sepharose so that these regions are free to bind

PHOX

Of the thousands of chiral ligands used in asymmetric synthesis a relatively large number exhibit C2-symmetry. More recently, non-symmetrical modular P,N-ligands have been introduced independently by Pfaltz, Helmchen, and Williams and applied successfully in various metal-catalyzed reactions.

Column Packing and Preparation for Size Exclusion Chromatography

Sample Preparation for Size Exclusion Chromatography

Samples for chromatographic purification should be clear and free from particulate matter. Simple steps to clarify a sample before beginning purification will avoid clogging the column, can reduce the need for stringent washing procedures, and can extend the life of

Sample Preparation for Affinity Chromatography in Specific Groups of Biomolecules

Elastase

Enzyme Explorer Product Application Index for Elastase. Leukocyte elastase is a 29KDa serine endoprotease of the Proteinase S1 Family. It exists as a single 238 amino acid-peptide chain with four disulfide bonds.

Sample Preparation for Chromatographic Purification

This page discusses various aspects of sample preparation for chromatographic purification.

Sample Preparation in Ion Exchange Chromatography

This page clarifies sample preparation, buffer exchange and desalting, removal of lipoproteins, phenol red, and low molecular weight contaminants in Ion exchange chromatography.

Advances of Noble Bimetallic Nanoparticles in Detection of Glucose Level

Dr. David Medina Cruz et. al. investigate advances in noble bimetallic nanoparticles (BMNP) to more precisely measure and monitor glucose levels in the blood. They focus on the use of enzyme-free silver and gold nanoparticles, such as Ag-Au, Ag-Pt, Ag-Pd

Silver Nanomaterials: Properties & Applications

Silver nanomaterials have unique physical, chemical and optical properties that are being leveraged for a wide variety of applications.

Barrier Formation and Permeability Assays using Millicell^® Hanging Cell Culture Inserts

How to set up barrier formation and permeability assays using cell culture inserts and TEER measurements.

Silver Nanomaterials for Biological Applications

Silver nanomaterials have unique physical, chemical, and optical properties that are currently being leveraged for a wide variety of biological applications.

Advances in Materials for Solid Oxide Fuel Cells

As with all types of fuel cells, a Solid Oxide Fuel Cell (SOFC) is capable of efficiently transforming chemical energy into electrical energy.

Graphene and Other 2D Crystals for Rechargeable Batteries

Advanced technologies for energy conversion and storage are widely sought after for their potential to improve consumer and electronic device performance as well as for the prospect of reducing the societal and environmental impact of energy generation.

Virus Cultivation

Cell lines for vaccine production and cultivation of SARS CoV-2 and other viruses. Primary, human diploid, and continuous culture cell lines for the propagation of viruses and virus-based vaccines.

Pressure-Temperature Calculator for Solvents

Use the calculator to determine the boiling point or pressure of solvents based on the Antoine Equation and see solvent attributes. View a list of products based on the solvent CAS number.

GPCR Markers for Cancer Research

Explore the role of some selected GPCR markers in cancer research development and treatment, including neurohormonal GPCRs, rhodopsin-like GPCRs, and more.

Graphene-Based Composites and their Unique Renewable Energy Applications

Graphene is a unique two-dimensional (2D) structure of monolayer carbon atoms packed into a dense honeycomb crystal that has attracted great interest due to its diverse and fascinating properties.

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