Lab Instrument Index

Lab Instrument Index is an independent knowledge base for people who need to understand, select, and operate laboratory instruments. It explains the role an instrument plays in a workflow, the questions to ask before adopting one, and the operating context that follows the purchase.

We do not rank brands, reproduce marketing claims, or treat a specification sheet as a buying decision. Instead, our guides connect instrument principles, applications, selection criteria, routine care, and the questions that shape a workable laboratory setup.

Start with an instrument family

• HPLC — Separate components in a liquid mixture before detection or collection.
• LC-MS — Combine liquid chromatography with mass-based detection for more selective information.
• Centrifuge — Separate or prepare samples by applying controlled centrifugal force.
• UV-Vis Spectrophotometer — Measure how a sample absorbs or transmits ultraviolet and visible light.

Compare related workflows

If you are deciding whether liquid chromatography alone is enough for a question, begin with HPLC vs. LC-MS. The guide separates the analytical question from the instrument label: separation, detection, confidence in identity, sample complexity, and the resources needed to support the method.

If the separation is suitable but the detector is undecided, use HPLC Detector Selection to compare UV, diode-array, fluorescence, refractive-index, and mass-spectrometric detection by analyte and method constraints.

For an HPLC replacement or fleet decision, Agilent vs. Waters HPLC and Shimadzu vs. Agilent HPLC compare method transfer, configured hardware, data systems, consumables, and lifecycle support without selecting a universal winner.

For a direct optical measurement, UV-Vis Spectrophotometer Selection Criteria turns the sample, method, accessory, throughput, software, and verification requirements into a practical shortlist.

For sample-preparation capacity and installation planning, Benchtop vs. Floor-standing Centrifuge starts with the vessel, rotor, force, throughput, and laboratory space rather than the instrument footprint alone.

Move from overview to shortlist

• HPLC Product Families — Map routine HPLC, HPLC/UHPLC bridge systems, higher-performance UHPLC, and specialized LC configurations.
• LC-MS Product Families — Separate single quadrupole, triple quadrupole, high-resolution, and specialized MS roles.
• Centrifuge Product Families — Connect installation class to rotor, vessel, capacity, temperature, and containment.
• UV-Vis Spectrophotometer Product Families — Compare sample formats, optical requirements, accessories, and data workflows.

Use the manufacturer guides after the equipment and method requirements are clear. They explain how instrument families connect to software, consumables, accessories, documentation, and support questions.

How to use these guides

Start with the instrument that is closest to your immediate workflow. Read the “What to consider” section before treating a feature as essential, and use the sources at the end of each guide to go deeper. Instrument operation, safety controls, validation, and maintenance intervals must always follow the procedures and limits for the specific instrument, rotor, method, and laboratory.