Featured product:
Sapphire - RD4-250-280-RI Four Channels Chromatography Detector

Superior Performance that Outclasses All Comparable Instruments

Click to see for yourself - the comparison chart of commercially available UV detectors

Works with virtually any fraction collector The only detector on the market to feature three simultaneous data acquisition techniques: Fixed length UV at 250 nm and 280 nm – blue and green traces, Refractive index at 250 nm – red trace, Conductivity/Proton mobility – yellow trace. Groundbreaking flow cell and electrode technologies render saturation virtually impossible for the first time UV LED light sources provide over a decade of function while eliminating warm-up time. Durable anodized titanium case and shielded display combine a sleek, modern design with near-total solvent-resistance. Included universal adapter makes attachment to any column or cartridge effortless – glass, FPLC, HPLC. Data is recorded to your USB drive in a simple format exportable to software of your choice. Optimized internal geometry provides both a minimal hydrodynamic resistance and a rapid flow rate of up to 300 ml/min. All in a small, lightweight device – 7.5” x 5.25” x 2.25” (3 lb).

Meet the First Detector Ever with True Flash Separation Capabilities

No matter how high the concentration of your elutant, you can remain confident that you will NEVER saturate the UV channels of RD4-250-280-RI. At last, you will be able to see true analyte peaks as they leave your column at high concentrations optimal for you, not your detector. Unlike other detectors, the chromatogram of RD4-250-280-RI never plateaus, so you never need to use so much silica (5-30 times the optimal amount) that your separation becomes sub-par. No more waste of

• solid phase and solvents,
• your precious product,
• separation time, evaporation energy, etc.

Detailed product information    User manual

RD2-250-280-RI Usage Examples. Click on the picture to enlarge the graph.

Separation of aromatic compounds. Demonstration of extremely wide dynamic range UV detection

Separation leucine and Ser-Gly dipeptide. Demonstration of Proton Mobility and RI detection of unprotected aminoacids without chromophores

Separation of Evans auxiliary and n-tridecanol. Demonstration of Proton Mobility and RI detection of non-ionic compounds without chromophores

Separation of polyols. Demonstration of Proton Mobility detection of polyols without chromophores in dichloroethane : methanol mixture

Glass column adapter RD4-250-280-RI can be easily attached to conventional glass columns with the included Teflon column adapter. Adapter uses Viton O-rings (included) to seal to the column stopcock. The adapter is compatible with most aqueous and organic solvents excluding DMF.