FAQ - Frequently Asked Questions

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Frequently Referenced FAQ

Latest FAQ

FAQ within [ Common ]

11-20 of Total 34

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  • The baseline undulates with the pump stroke

    Click [PURGE] to purge the bubbles. Alternatively, connect a syringe to the drain tube connection port to suction out the bubbles. Click here for Manual P... Show Detail

    • No：4296
    • Date of Issue：2020/12/03 11:00
    • Brached FAQ

  • The baseline shifts

    Check for leakage from cell inlet and outlet pipe connections and from the cell window. If there is leakage, disassemble and clean the cell. If there is lo... Show Detail

    • No：4295
    • Date of Issue：2020/12/03 10:59
    • Brached FAQ

  • The baseline drifts

    Inspect the suction filter for blockage. Also rinse them as described below. 1) Flush with 17 % aqueous phosphate solution for about 30 minutes at a flowr... Show Detail

    • No：4294
    • Date of Issue：2020/12/03 10:57
    • Brached FAQ

  • Ghost peaking occurs

    Inspect the suction filter for blockage.Also rinse them as described below. 1) Flush with 17 % aqueous phosphate solution for about 30 minutes at a flowra... Show Detail

    • No：4293
    • Date of Issue：2020/12/03 10:52
    • Brached FAQ

  • No peaks are output

    Check the column using known analytical conditions. If the column has deteriorated, replace it. Confirm whether the solvent delivery pump is functioning pr... Show Detail

    • No：4292
    • Date of Issue：2020/12/03 10:49
    • Brached FAQ

  • The peak shape is abnormal

    Check the column using known analytical conditions. If the column has deteriorated, replace it. Connect the tubing correctly. Backflush the high pressure... Show Detail

    • No：4291
    • Date of Issue：2020/12/03 10:46
    • Brached FAQ

  • Peak retention times vary

    Pump 2-propanol to rinse the check valve. However, if a buffer solution is being used, rinse the check valve with purified water first. Then rinse it by pump... Show Detail

    • No：4290
    • Date of Issue：2020/12/03 10:43
    • Brached FAQ

  • No power is supplied when power switch is switched ON

    Plug in the power cord properly. Replace it with a power cord of the same type. Use a power supply that meets the power supply specifications for the ins... Show Detail

    • No：4279
    • Date of Issue：2020/12/03 10:18
    • Brached FAQ

  • Carryover Does Not Disappear

    Autosamplers include rinsing functionality. Rinse the exterior and interior surfaces of the needle with solvent. Change the type of rinse solution and rins... Show Detail

    • No：4278
    • Date of Issue：2020/12/03 10:16
    • Brached FAQ

  • Poor Area Value Reproducibility

    If the solvent delivery pump flow is unstable, then area values and reproducibility are also unstable. Check the solvent delivery pump for pulsation, leakage... Show Detail

    • No：4276
    • Date of Issue：2020/12/03 10:09
    • Brached FAQ

11-20 of Total 34

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