Raymond Wong

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  • Why Should Dispersion be Measured?

    Why Should Dispersion be Measured? As previously described, dispersion impacts on the efficiency of a separation, where it can lead to analyte band spreading. The expected % efficiency yield for di...

  • How is Dispersion Measured?

    How is Dispersion Measured? Dispersion can be measured by injecting a sample of acetone onto a zero dwell volume (ZDV) union to measure the extra column band broadening effect. The method condition...

  • What is dispersion?

    What is Dispersion? Dispersion is a measure of analyte band broadening between the injector and detector, excluding the contribution from the column. As a sample is injected into the flow path, the...

  • USP Columns Listing ("L" Numbers)

    The USP provides a code with a corroborating generic column packing description suitable for pharmaceutical monographs. Most column manufacturers will display the L number in their literature.   ...

  • Nexera-i PDA method transfer system LC-2060C 3D MT

    Advanced Nexera-i PLUS + PDA Method Transfer System (iSeries) Dual path method transfer system HPLC to UHPLC Part Number: 228-65826-58 Cooled Compact HPLC System 700 bar capability with 4 mobile ph...

  • Nexera-i PDA LC-2060C 3D

    Advanced Nexera-i PLUS + PDA (iSeries) Part Number: 228-65825-58 Cooled Compact HPLC System 700 bar capability with 4 mobile phase lines (online blending) System / Gradient Delay Volume: 460 microl...

  • Nexera-i (UV) LC-2060C

    Advanced Nexera-i PLUS (iSeries) Part Number: 228-65824-58 Cooled Compact HPLC System 700 bar capability with 4 mobile phase lines (online blending) System / Gradient Delay Volume: 460 microlitres ...

  • Prominence-i (Detector-less) LC-2050C LT

    Detector-less Advanced Prominence-i PLUS  (iSeries) Part Number: 228-65823-58 Cooled Compact HPLC System 500 bar capability with 4 mobile phase lines (online blending) System / Gradient Delay Volum...

  • Prominence-i PDA LC-2050C 3D

    Advanced Prominence-i PLUS + PDA (iSeries) Part Number: 228-65822-58 Cooled Compact HPLC System 500 bar capability with 4 mobile phase lines (online blending) System / Gradient Delay Volume: 650 mi...

  • Prominence-i (UV) cooled LC-2050C

    Advanced Prominence-i PLUS (iSeries) Part Number: 228-65821-58 Cooled Compact HPLC System 500 bar capability with 4 mobile phase lines (online blending) System / Gradient Delay Volume: 650 microlit...