PURELAB Quest
Is lab water purity the key to your experimental success?
Learn how to diagnose causes of water-related errors in HPLC, molecular biology, buffers and glassware cleaning.
Our interactive Lab Water Wise Toolkit is a must-have guide for every lab to help prevent water contamination. Discover how to diagnose water-related errors in lab analyses and the five major risks of lab water contamination. Learn everything you need to know about the different types of water used in the lab and which water you should use for your applications, including HPLC, PCR, buffer solutions and glassware cleaning. Find out how much water contamination really costs research labs and the impact water errors have on the lab as a whole. Make sure your lab isn’t one of them.
What’s inside?
- Use our HPLC troubleshooting tool to discover the contaminants lurking behind blockages in the column, extra peaks and an array of other HPLC-related errors.
- PCR-related water issues such as a false positive and nuclease contamination are completely avoidable - learn how.
- The essential preparation guidelines to avoid contaminated cell cultures.
- Are your buffers producing unreliable results? Find out how to prevent contamination by minimising common risks in the preparation of buffer solutions.
- Laboratory glassware cleaning is trickier than you think. Read our glassware cleaning protocol to learn which water you need for research and analytical techniques.
- Want to know which lab water purification system you can completely rely on to avoid water impurities, saving your lab time and money?
Demand more - discover PURELAB Quest, the world’s first 3-in-1 lab water purification system. Lab water you can trust.

Features

Tech Specs
Quest UV Specifications | Type I (Ultrapure water) | Type II (Pure water) | Type III (RO-permeate) |
---|---|---|---|
Resistivity | 18.2 MΩ.cm @ 25°C | >1 MΩ.cm @ 25°C | |
Dispense flow rate | Up to 1.2l/min (0.27gal) | ||
TOC Value | <5 ppb | <50 pbb | <200 ppb*4 |
Bacteria TVC | <0.1 cfu/ml*1 | <100 cfu/ml | <1000 cfu/ml*4 |
Endotoxin | <0.001 EU/ml*1 | ||
RNase | <1pg/ml | ||
DNase | <5pg/ml | ||
pH | Effectively Neutral | ||
Particulates | 0.2μm filtration*1 | ||
Recommended daily volume | Up to 10l/Day*3(2.2gal) | Up to 10l/day*3 (2.2gal) | Up to 30l/day (6.6gal) |
Conductivity | <20μS/cm4 | ||
Ionic rejection | >96%*5 | ||
Particulates & bacteria rejection | >99% | ||
Organic rejection (MW >200Da) | >99% | ||
Production Flow |
Quest UV Specifications | Type I (Ultrapure water) | Type II (Pure water) | Type III (RO-permeate) |
---|---|---|---|
Resistivity | 18.2 MΩ.cm @ 25°C | >1 MΩ.cm @ 25°C | |
Dispense flow rate | Up to 1.2l/min (0.27gal) | ||
TOC Value | <5 ppb | <50 pbb | <200 ppb*4 |
Bacteria TVC | <0.1 cfu/ml*1 | <100 cfu/ml | <1000 cfu/ml*4 |
Endotoxin | <0.001 EU/ml*1 | ||
RNase | <1pg/ml | ||
DNase | <5pg/ml | ||
pH | Effectively Neutral | ||
Particulates | 0.2μm filtration*1 | ||
Recommended daily volume | Up to 10l/Day*3(2.2gal) | Up to 10l/day*3 (2.2gal) | Up to 30l/day (6.6gal) |
Conductivity | <20μS/cm4 | ||
Ionic rejection | >96%*5 | ||
Particulates & bacteria rejection | >99% | ||
Organic rejection (MW >200Da) | >99% | ||
Production Flow |
*1 When using point of use filters (LC134/LC197)
*2 When using point of use filters (LC197)
*3 Avaialble volume of Type I and II water combined; increased use will reduce purification pack life
*4 Subject to suitable feed water purity(see ionic rejection) and system maintenance
*5 With feed water pressure at >4 bar and temperature at 15 oC

Consumables
Consumables Datasheet

Accessories

Water storage reservoir for 30 litres.

Water storage reservoir for 15 litres.

An optional external pump which can be used when there is a low-pressure water feed.

Designed to connect to the back of the system or on a wall. It contains an activated carbon filter to help optimise the purification process. This acts as a catalyst for removal of oxidizing agents such as chlorine & chloramine.

An optional kit you can use to install Quest against a vertical wall, to help save on valuable lab space.

Unrivaled purity design, unmatched flexibility & effortless use.
Together with PURELAB Chorus & Quest, the PURELAB Dispenser enables uninterrupted discovery.
✓ Delivering proof of water purity
✓ Repeated volume dispensing
✓ Improving lab efficiency
✓ Reproducible results

Water storage reservoir for 30 litres.

Water storage reservoir for 15 litres.

An optional external pump which can be used when there is a low-pressure water feed.

Designed to connect to the back of the system or on a wall. It contains an activated carbon filter to help optimise the purification process. This acts as a catalyst for removal of oxidizing agents such as chlorine & chloramine.

An optional kit you can use to install Quest against a vertical wall, to help save on valuable lab space.

Unrivaled purity design, unmatched flexibility & effortless use.
Together with PURELAB Chorus & Quest, the PURELAB Dispenser enables uninterrupted discovery.
✓ Delivering proof of water purity
✓ Repeated volume dispensing
✓ Improving lab efficiency
✓ Reproducible results

FAQS
- What is PURELAB Quest?
PURELAB Quest, is the latest addition to the PURELAB range. It is a laboratory water system that delivers water for the widest range of lab applications, offering unmatched value and an outstanding user experience
- How many types of water can be dispensed from a PURELAB Quest system?
PURELAB Quest can dispense 3 types of lab water- Type I (Ultrapure) water for critical applications such as molecular biology and HPLC; Type II (Pure) water for buffer and medial preparation; and Type III (RO permeate) water for glassware rinsing and autoclaves.
- What are the benefits of the PURELAB Quest system?
Besides dispensing water for the widest range of lab applications; PURELAB Quest is designed to minimise valuable lab space with its compact design, itis environmentally friendly, is designed to provide reliable and reproducible results with its multiple water purity sensors and inbuilt periodic recirculation plus it is easy to install, use and maintain with excellent customer feedback.
- How precise is volumetric dispensing?
Typically the volumetric dispensing accuracy is +-10ml or +-3% whichever is the greater.
- How many product variants are there?
Customers have the option to purchase a UV or non-UV variant depending on their application and budget.
- What sort of reminders are available?
Users have the option to set the replacement reminders for the UV lamp (12 months), vent filter (12 months) & RO Membrane (24 months).
- What is the size of the storage reservoir in a PURELAB Quest?
PURELAB Quest is designed with an integrated 7 litre reservoir. There is also an optional 15l or 30l external reservoir.