ICP-MS instrument after autotune troubleshooting, replacement installation, and cooling manifold repair

21May 2026

Consultation, Equipment Repair, Installation, Preventive Maintenance Sergey Vorochaev

ICP-MS Replacement and Water Chiller Manifold Rebuild for Restored Tuning Performance

A laboratory contacted us for ICP-MS autotune failure and plasma ignition issues after maintenance was performed on an older system. During diagnostics, the RF work coil was found contacting the bonnet, which had caused misalignment in the torch assembly. The torch components, gas settings, RF supply output, RF coil, and related connections were inspected and tested, but the instrument continued to have ignition problems when correctly aligned. Because the next likely repair path involved RF gen...

Thermo NanoDrop 2000c spectrophotometer repaired after Xenon lamp failure and wavelength verification error

21May 2026

Equipment Repair, Operation Qualification Sergey Vorochaev

Thermo NanoDrop 2000c Xenon Lamp Replacement and Wavelength Calibration

A Thermo NanoDrop 2000c spectrophotometer at UC San Diego was experiencing a start-up failure and wavelength verification error. During diagnostics, the optical switch was unable to complete wavelength verification because the Xenon light source was not illuminating during startup. Inspection confirmed that the Xenon lamp had failed electrically. Power and signal lines to the lamp were checked, and no arc discharge or lamp output was observed, while the optical switch itself was found to be func...

24Apr 2026

Equipment Repair, Preventive Maintenance Sergey Vorochaev

Agilent HPLC Quaternary Pump Leak Repair and Pressure Stability Restored

An Agilent HPLC quaternary pump leak at high pressure was reported, with visible solvent leakage during operation and instability when running standard methods. The system could not maintain proper pressure, raising concerns about pump performance and reliability. Diagnostics identified two leak points: one at the inlet tubing connection to the inlet valve, and another between the pump head and pump body. The inlet valve was removed and cleaned to eliminate salt buildup, resolving the leak at th...

Caron Environmental Chamber Installation and Drainage System Issue

24Apr 2026

Consultation, Equipment Repair, Installation, Restoration & Refurbishment, Transportation Sergey Vorochaev

Caron Environmental Chamber Installation and Drainage System Repair

When a customer needs Caron environmental chamber installation and drainage setup, especially for pre-owned units, hidden infrastructure issues can prevent proper operation from the start. In this case, multiple chambers were delivered in unknown condition and required full installation, testing, and system integration. During initial inspection, the chambers were found to be missing proper provisions for external drain pumps, and the existing water supply and drainage configuration was not comp...

24Apr 2026

Equipment Repair, Preventive Maintenance Sergey Vorochaev

Agilent HPLC Retention Time Shift Resolved by Clearing Pump Blockage

Retention time shift on an Agilent HPLC system was reported during routine runs, affecting method consistency and data reliability. Initial flushing revealed abnormally high back pressure even with the purge valve open, pointing to a restriction within the pump. Diagnostics confirmed a clogged PTFE frit inside the pump as the root cause of the pressure issue. After replacing the frit, system pressure returned to normal levels. A follow-up leak test initially failed, which led to further inspecti...

SCIEX QTRAP 5500 triple quadrupole mass spectrometer for quantitative analysis

11Apr 2026

Equipment Repair, Preventive Maintenance, Restoration & Refurbishment Sergey Vorochaev

SCIEX 5500 Low Sensitivity Repair and Agilent HPLC System Recovery

We were called for SCIEX 5500 low sensitivity repair on an LC-MS system paired with an Agilent HPLC. The mass spectrometer was not delivering proper sensitivity, and the connected HPLC stack also needed testing and follow-up service to keep the full system operating correctly. Diagnostics showed contamination in the front end of the mass spectrometer, affecting the ion source area and related front-end components. We cleaned the affected MS components, restored proper response, and completed tun...

Agilent 1100 Series HPLC system for liquid chromatography analysis

11Apr 2026

Equipment Repair, Installation Sergey Vorochaev

Agilent 1100 Pressure Problem Repair

Agilent 1100 pressure problem repair was needed for a system that would not build pressure during startup after installation and connection. The HPLC repeatedly failed the pressure test even though the leak test passed, which prevented the system from moving into normal operation. Our diagnostics included connection review, firmware updates, pump service, and testing of the related support equipment. The pump seals and pump head components were serviced first, but the pressure problem remained....

Agilent HP 6890 gas chromatograph mass spectrometer with autosampler for chemical analysis

11Apr 2026

Consultation, Equipment Repair Sergey Vorochaev

Agilent 6890 GC Autosampler Carousel Failure Diagnosed

An Agilent 6890 GC autosampler Z-axis homing error can come from more than one part of the autosampler system. In this case, the customer’s autosampler was not functioning and injections could not be performed, even after a replacement injection tower had already been installed. Our evaluation focused on the remaining autosampler components. During inspection of the carousel tray assembly, we found that the drive belt was torn and no longer able to transmit motion. The belt was replaced using...

Agilent G2565CA microarray scanner for DNA gene expression analysis

11Apr 2026

Equipment Repair, Operation Qualification, Preventive Maintenance Sergey Vorochaev

Agilent Microarray Scanner Autofocus Error Repair

We serviced two Agilent G2565CA microarray scanners after the customer reported an Agilent microarray scanner autofocus error during slide scanning, along with intermittent color distortion, focus instability, and image discoloration on one of the units. During diagnostics, the affected scanner initially passed routine preventive maintenance checks, but the fault appeared later in operation. We first replaced the autofocus coil cable, but the issue continued after several hours of use. Further s...

11Apr 2026

Equipment Repair, Installation Sergey Vorochaev

Resolving a PerkinElmer EnVision Software Issue

This PerkinElmer EnVision software issue appeared after the system workstation was removed from a previous domain environment. The customer needed the instrument restored for standalone operation, but the existing computer setup was preventing the EnVision software from functioning correctly and blocking normal communication with the instrument. Our diagnostics showed that the problem was caused by leftover domain-related and Windows configuration settings from the previous installation. A softw...