Direct-Q® 3, 5, 8 Laboratory Water Purification Systems

Manufacturer MilliporeSigma
4.4
/
5.0
  |  4 reviews


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Average Rating: 4.4
4 Scientists have reviewed this product

5 out of 5
Ease of use
4 out of 5
After sales service
5 out of 5
Value for money


I would definitely recommend to any lab doing BOD analysis.
Rating: 4.7

  • Application Area: Water Treatment

"The Millipore Milli-Q Direct 8 was purchased to replace the Barnstead still that was used to make water for BOD analysis. Due to the amount of deionized water that was wasted during the distillation process, we were constantly changing out the carbon filters and cartridges on the DI system. This was extremely costly. The Milli-Q Direct 8 converts our tap water into Type I water with no water wasted. To date, there has been no problem with the BOD testing and we have experienced significant monetary savings. "

Review date: 30 Mar 2016 | Direct-Q® 3, 5, 8 Laboratory Water Purification Systems
  • Status:

    Advanced Reviewer

  • Member since: 2002

  • Organization: University of Utah- Vascular Lab



  • Ease of use
    4 out of 5
    After sales service
    3 out of 5
    Value for money
    3 out of 5
Great product, but after sale support is lacking.
Rating: 3.3

  • Application Area:Water purification

"I think it is a good system. My main gripe is that when we were looking at systems we got a lot of attention. The sales rep came and showed us systems installed in other locations and talked about our many options. We finally decided on a system and went forward. We ended up getting some things we really didn't want or need. the rep said he would take it back and give us credit, but we never saw him again. They send an email every year reminding me to replace the filters. This can be good, and bad. Yes, we need to replace the filters every year, but it seems like the reminders are coming more like every nine months. It appears that they are just trying to sell products. Trying to find information on maintenance is ...... difficult. The manual is pretty good at outlining needed maintenance steps, but if it is not in there it is going to be hard to get the information. The Millipore web site is terrible. If you call or email, however, they are pretty helpful."

Review date: 25 Jan 2016 | Direct-Q® 3, 5, 8 Laboratory Water Purification Systems
  • Status:

    Expert Reviewer

  • Member since: 2015

  • Organization: Bharat Serums and Vaccines Ltd



  • Ease of use
    5 out of 5
    After sales service
    5 out of 5
    Value for money
    5 out of 5
Very good system
Rating: 5.0

  • Application Area:WFI quality water for lab

"Very good trouble free system. water quality meets WFI criteria."

Review date: 18 Jan 2016 | Direct-Q® 3, 5, 8 Laboratory Water Purification Systems
  • Status:

    Reviewer

  • Member since: 2015

  • Organization: PA Veterinary Laboratory



  • Ease of use
    5 out of 5
    After sales service
    4 out of 5
    Value for money
    5 out of 5
Rating: 4.7

  • Application Area:Ultra pure water for making test media/reagents.

"We have only had the system a short time and it is one of three systems throughout the lab. It is very easy to use and maintain and seems to be perfect for our lab needs."

Review date: 27 Aug 2015 | Direct-Q® 3, 5, 8 Laboratory Water Purification Systems
Direct-Q® 3, 5, 8  Laboratory Water Purification System

• The Direct-Q® lab water purification systems produce pure and ultrapure water from potable tap water
• A choice of dispensers provides convenient point-of-use ultrapure water delivery
• The Direct-Q® systems are compact all-in-one systems that economize laboratory space

The expanded and updated Direct-Q® range now includes models capable of supplying 50, 100 or 150 liters of pure water per day, and up to 30 liters per hour of ultrapure water. Systems are also available with an integrated dispenser. Users can choose a system with an integrated 6-liter reservoir, or a configuration that includes a 30- or 60-liter reservoir, depending on their volume needs

The high-quality ultrapure water produced by the systems is suitable for critical applications – such as chromatography work; the preparation of blanks and standard solutions in spectrophotometry, spectroscopy and other analytical techniques; and the preparation of buffers for biochemical experiments. Pure water from the system can be used for general glassware washing.

In addition, water quality can be “fine-tuned” to meet specific requirements. Direct-Q® systems are available with a built-in 185/254 nm UV lamp, which serves to reduce the level of organics for critical applications such as HPLC work, as well as destroy bacteria. EMD Millipore’s range of Application Pak polishers provides further tailor-made water quality for researchers who need water free of particulates, pyrogens, bacteria, nucleases, endocrine disrupters or VOCs.


System parameters are easily visible on the intuitive color graphic displays, and documentation, including a concise “Quick Reference Guide,” can be stored on the unit. Regular maintenance is minimal with an all-in-one SmartPak® cartridge that can be replaced easily and quickly.