Milli-Q Direct

Optimum pure water production

Tap water is first purified to pure (Type 3) water by reverse osmosis (RO) using techniques designed and optimized by Millipore:

Pre-treatment ProGard® cartridge validated to extend the lifetime of the RO cartridge Reject recirculation loop which recycles reject water treated by the Progard to minimize tap water usage and extend Progard lifetime while avoiding fouling or scaling issues that might shorten the RO cartridge lifetime. Unique system adaptation to feed water temperature in order to avoid flow rate decrease during the winter time when tap water is colder. Unique safety device ensuring that only low ionic permeate water will be sent to the tank in order to warrant adequate pure water quality and to increase the life time of the ion-exchange cartridge used to produce ultrapure water. Complete process monitoring system checking systematically water temperature, pressure, conductivity and RO rejection using calibrated meters at different steps.

The pure water produced by the Reverse Osmosis is stored in a tank designed to minimize risks of contamination during water storage. Millipore tanks level sensor will allow the systems to automatically start or stop producing water when you want it, display accurately on the systems screen the water level in the tank and have safety devices preventing overflow or system running dry.

From that reservoir, water can be sourced though a front valve or sent by a delivery pump to feed instruments such as a glassware washing machine, or further processed by the Milli-Q Direct to produce ultrapure (type1) water.

Convenience in ultrapure water delivery

From pure water, the Milli-Q Direct produces ultrapure water adapted to your specific applications and exceeding the requirements of the most demanding norms.

We’ve achieved all this with a new purification strategy. Water is purified in a first step using unique Jetpore ion-exchange resin, synthetic activated carbon and UV lamp emitting at 185 and 254 nm to reach a resistivity of 18.2 MΩ.cm at 25 °C and a TOC value below 5 ppb, both monitored by advanced analytical techniques.

This water is sent through a small recirculation loop to the POD Pak, where a final purification step, critical for specific experiments, removes contaminants just before water leaves the system.

Special care was taken to achieve convenient water delivery:

The low flow function allows precisely adjusting the meniscus in volumetric flasks to prepare easily accurate aqueous solutions The 75 cm long tubing reaches the sink for easy glassware washing. The volumetric function, automatically delivers the water volume that you need, allowing you to save time The height and shape of the dispensing arm are designed to fit the height & shape of all laboratory glassware, from the 250 mL Erlenmeyer to the 2 L graduated cylinder. Deliver water hands-free using the footswitch option for more convenience. Select POD-Pak from a wide range to adapt you ultrapure water to a specific application in a glimpse: you may switch from a Millipak Express 40 for general laboratory applications to an LC-Pak for production of UHPLC or LC-MS grade water or a BioPak for the delivery of pyrogen-free and nuclease-free water for PCR or other molecular biology applications.

Easy Access to information

Access to water system data is structured simply, so you can save time instead of searching endlessly for specific information.

The Main Screen on the production unit delivers detailed information in the language of your choice on system operation and performance. Clear graphics help you perform specific tasks such as maintenance. From the same screen, you can even print reports on the system’s water quality and history.

Easy and reduced maintenance

Maintaining the Milli-Q Direct system won’t take time away from your research.

Maintenance frequency is minimal, and the procedures are simplified to the utmost.

You can replace the ProGard pretreatment pack or the Q-Pak polishing cartridge in less than 5 minutes.

Total Water Solutions

With Milli-Q Direct, you get more than just a lab water system: Millipore provides you with a total lab water solution including possible product evolutions such as upgrades, new consumables or accessories, quality assurance support (certificates of quality, calibration as well as qualification documents), service support as well as applications and scientific support so that you are sure to access 100% of the time water quality and quality adapted to you needs, even if they evolve with time.