Product Introduction

Merck Millipore laboratory pure water equipment occupies an absolute dominant position in the industry. From the classic MIlli-Q ultrapure water machine, Elix pure water analyzer, RiOs reverse osmosis pure water machine, to new low flow ultrapure water equipment such as Simplicity and Direct-Q.

The Direct-Q3 laboratory pure water/ultrapure water integrated system is designed for users with small water consumption. It can directly prepare Class III pure water and Class I ultrapure water from tap water, adapting to different application needs. Ultra pure water can be used for the preparation of buffer solutions such as LC and HPLC, as well as for sample preparation. Pure water can be used for washing and rinsing conventional glassware. The Direct-Q3 UV system is equipped with optional 185/254nm dual wavelength UV lamps to produce ultrapure water with low TOC levels, especially suitable for applications sensitive to organic matter.

main features

1. Stable water production

Direct-Q3 system can provide hourly updatesSupply 3L of pure water, able to provide 0.5L of ultrapure water per minute（18MΩ .cm@25 ℃，>30L per hour）. Not usingWhen in use, the Direct-Q system can automatically recycle to maintain stable water quality, so that when neededWhen using ultrapure water, there is no need to spend time waiting for the water quality to meet the standards.

2. High precision resistivity meter

The resistivity detector adopts a unique sleeve design, which increases the effective electrode surface area and reduces the electrode spacing. The electrode constant can reach 0.01cm-1, and the temperature sensitivity is 0.1C, especially suitable for low conductivity range（<1us/ cm@25 ℃）Ultra pure water online detection. Display in two modes: temperature compensation and non temperature compensation.

3. Applicable toApplications sensitive to organic matter

The Direct-Q3 system is also equipped with built-in 185/254nm dual wavelength ultraviolet lamps to reduce critical applicationsThe level of organic matter in use. Ultra pure water with low TOC can bring important benefits to HPLC users,Such as higher sensitivity and longer column life. The same UV lamp can also remove bacteria.

4. MatchTerminal refiners for different applications

Through Merck Millipore's series of terminal refiners, ultra pure water quality can be refinedFurther purification to meet different application requirements. According to the analysis of bacteria, particlesExperiments sensitive to heat sources, nucleases, endocrine disruptors, or volatile organic compounds, matched with corresponding refiners.

5Selection of water storage capacity

The Direct-Q 3 system is equipped with a built-in water tank, which can store 6L of reverse osmosis water and is also optionalUse 30L or 60L water tanks together. Just choose different water storage optionsQuantity can best meet your daily water needs.

6. Ready to use and install

1) Easy to install: No special installation program is required, you can install it yourself.
2) Space saving: With a compact design, it can be easily placed on the laboratory bench and hung on the wall for you to choose from.

7. Optional selectionMulti functional remote water intake device——Easy to use

1) Convenient water intake: The system height and shape have been specially designed to be suitable for various sizes of universal glass containers for water intake in the laboratory.
2) Automatic circulation: When not taking water, the system can automatically circulate the ultrapure water inside to ensure stable water quality.
3) Information acquisition: The color graphic display is clear and bright, displaying all key information, including various system parameters, operating functions, and water quality status.
4) Easy to maintain: The system consumables are only "integrated" purification columns and terminal refiners, which can be replaced in just a few minutes.

Application scope

Grade III pure water:As a water supply for instruments such as ultrapure water machines, sterilization pots, ultrasonic machines, aging machines, etc., it is also used inOrdinary glass cleaning or final rinsing.

Grade I ultrapure water:Chromatographic separation of mobile phase preparationPreparation of blank, standard, and sample solutions using spectrophotometry, spectroscopic or other analytical techniques, andPreparation of biochemical experimental buffer solution.

technical parameter
1. Ultra pure water (Grade I water) production water quality*
Electrical resistivity 18.2M Ω• cm@25 °C
TOC (without 185/254nm UV lamp installed):< 10ppb
TOC (equipped with 185/254nm UV lamp):< 5ppb
Particulate matter (particle size>0.22 μ m) * *:< 1/ml
Microorganisms * *:< 1cfu/ml
Endotoxin * * *:< 0.001EU/ml
RNAse * * *:< 0.01 ng/ml

DNA enzyme***： < 4 pg/μl

Flow rate * *:> 0.5L/min (up to 30L/hr maximum)

remarks:

*Under normal working conditions

**Use Millipak Express 20 (0.22 μ m) filter or BioPak ® Ultrafiltration deviceAs a terminal refining device

***Only use BioPak ® Ultrafiltration as a terminal refining device

2. Pure water (Grade III water) production water quality*
Ion interception rate>94%
Organic compounds with MW (molecular weight) greater than 200 have a cut-off rate of>99%
Microorganisms and particles>99%
Water production flow rate>3L/ hr@25 °C

remarks:

*Under normal working conditions