Bottle-top dispensers

Choose the range in which your usual dose sits in the upper part. A dispenser is most accurate near its maximum, so for doses of about 5 ml, a 0.5–5 ml model is a better choice than a 5–50 ml one. The range is in each product title, for example bottle-top dispenser 5.0–50.0 ml for larger doses. If you dispense several different small volumes in a series, a repeater pipette with tips from dispenser and repeater tips may suit you better. Unsure which range fits? Ask sales@luminixhealth.com.

Resistance depends on the materials of the liquid path: piston, cylinder, valves and discharge tube. Each product page gives these materials and, where available, a resistance table; check your liquid there before you order. Hydrofluoric acid attacks glass, so it needs a dedicated version without glass parts, such as the dispenser for HF, 0.5–5 ml. For most acids and many solvents, a standard model with resistant materials is suitable when the table confirms it. Not sure about your liquid? Send its name to sales@luminixhealth.com.

Most bottle-top dispensers have a standard GL 45 thread and come with adapters for other neck sizes; the product page lists the thread and the adapters included. Measure or check the thread of your bottle first. For bottles with another neck, separate thread adapters are in bottle accessories. If you are buying new reagent bottles anyway, choosing laboratory glass bottles with a GL 45 neck avoids adapters altogether. Place the dispenser on a stable, upright bottle. Unsure which adapter you need? Send us the bottle details at sales@luminixhealth.com.

A recirculation valve lets you prime the dispenser and remove air bubbles without losing reagent: the liquid flows back into the bottle instead of being discarded. That is useful with costly or aggressive liquids. The product title shows whether a model has this valve, as with the dispenser, 0.5–5 ml range. A sterile or autoclavable version matters when you dispense media and buffers for cell culture media and sera; check on the product page which parts can be autoclaved. Questions about a specific liquid? Ask sales@luminixhealth.com.

A bottle-top dispenser meters a reagent directly from the bottle it is mounted on, by a piston. The volume range and the chemical compatibility of the wetted parts, glass, ceramic, PTFE, are the specification. It is for the same reagent again and again, not for changing liquids every sample.

A piston pipette delivers a set volume of liquid by air displacement or, for viscous and volatile liquids, by positive displacement. A single channel is the ordinary tool. A multichannel repeats the same volume across a row of a plate. A bottle-top dispenser meters reagent from the bottle it sits on. The accuracy is a property of the pipette and of how it is used, which is why calibration and a certificate exist. Piston-operated apparatus is treated under ISO laboratory apparatus. The volume unit sits with the BIPM and NIST.

This shelf belongs to Liquid handling, inside Lab instruments. Luminix Health distributes this range for laboratory use.

The neighbouring shelves are Pipette stands, calibration & accessories, Single-channel pipettes, Multichannel pipettes and Electronic pipettes. The category above this shelf is Liquid handling.

Luminix Health distributes this range from the heart of Europe. We deliver across the EU in two to five days if in stock. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. Send a quote request, contact the team, or read who we are. The full brand index is on shop by brand.

The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology. If the article is not on the shelf, request a quote.