- Analytics and Sample Preparation - Spectroquant Prove
- Analytics and Sample Preparation - Chromatography for Analysis - Analytical HPLC
- Analytics and Sample Preparation - Chromatography for Analysis - Gas Chromatography GC
- Analytics and Sample Preparation - Spectroscopy
- Drinking Water Reference Standards
- Ready-to-use Diffusive Sampler
- Diffusive Sampling Accessories
- Diffusive Bodies
- Empty Storage Tubes
- SPB<sup></sup>-624 GC Columns for Volatiles
- VOCOL<sup></sup> GC Columns for Volatiles
- SPB<sup></sup>-608 GC Columns for Pesticides & Herbicides
- Equity<sup></sup>-1701 GC Columns for Pesticides & PCBs
- SP-2331 GC-MS Columns for Dioxins
- Cartridges
- ORBO Silica Gel Tubes
- ORBO PUF Cartridges
- ORBO Polymeric Adsorbent Tubes
- ORBO Florisil Tubes
- ORBO Coated Filter
- Molded Thermogreen LB-2 Septa
- GR-2 Septa
- ORBO Charcoal Tubes
- Gas Sampling Bags
- Thermogreen LB-2 Septa
- Gas Sampling Bulbs
- Pyrosep S-1 Septa
Merck KGaA, Darmstadt, Germany products
Analytics and Sample Preparation - Chromatography for Analysis - Analytical HPLC
Merck Aluspher - Model 100 RP-Select B - HPLC Columns
A Stable RP Stationary Phase, Optimized for Applications up to pH12. Merck’s Aluspher® RP-select B HPLC column is an alkali-stable reversed-phase stationary phase designed for the chromatographic separation of neutral, basic and acidic compounds under neutral conditions. Due to its stability in the pH range of 2-12, Aluspher® RP-select B allows the use of basic eluents, such as NaOH. This suppresses the ionization of basic compounds, and thus avoids peak tailing. Furthermore, advanced formulation technology has enabled the production of spherical alumina particles as a base for Aluspher® 100 RP-select B. The combination of alumina with alkaline eluents has led to new applications in HPLC.
Merck Superspher - HPLC Columns
Superspher® columns are specially designed for highly efficient HPLC separations. According to both theoretical calculation and practical experience, these high performance spherical silica carriers, with a mean particle size of 4 μm, provide an optimum pressure to separation performance ratio. The number of theoretical plates for Superspher® HPLC columns is > 100,000 N/. This makes them the ideal choice for complex sample mixtures that require high peak capacity.