Milli-Q Ultra Pure Water Analyzer from the United StatesIntroduction:
Millipore has developed a series ofMilli-Q Ultra pure water system,Intended to meet specific water quality requirements. fiveMilli-QThe systems are specifically designed for specific target pollutants and applications such as HPLC, molecular biology, and ICP-MS. These systems integrate high-precision resistivity monitors that can record conductivity or resistivity (whether compensated at 25 ° C), and also use a built-in TOC monitor with a detection range of 1-999ppb, which can be used for accurate analysis of organic content.Milli-QThe suitability testing requirements of USP 28-NF21 were considered in the design of the resistivity meter and TOC analyzer. Provide users with comprehensive authentication and verification services, and access historical data through a connected computer interface. All systems can be operated on a desktop, installed on the wall, or integrated on a desktop to save space.

Milli-Q Ultra Pure Water Analyzer from the United StatesStandard purification steps
Milli-QAll systems in the series adopt a three-step purification process:
Step 1:
The plug-in Q-Gard purification column is customized according to the inlet water quality, aiming to optimize the performance of downstream purification steps to ensure the accuracy of the results.
Step 2:
Quantum applies specific purification columns to reduce ions and organic pollutants to trace levels.
Step 3:
The ultimate purification of ultrapure water is performed using a 0.22 μ m Millipak membrane at the water intake point, which is recommended for most analytical applications.

Additional purification steps
UV light oxidation:
The ultraviolet photooxidation process (UV, 254 and 185nm) is used in Milli-Q Gradient, Synthesis and Element systems, which can effectively destroy organic molecules and reduce TOC content to below 5ppb, thereby improving performance and sensitivity in applications such as HPLC, IC, solid-phase extraction and UV spectroscopy.
Ultrafiltration:
Milli-QThe Biocel and Synthesis systems include a Pyrogard 5000 purification column for producing ultrapure water (<0.001 EU/mL) without heat sources and nucleases, which is particularly important in life science or molecular biology applications.

Milli-Q Ultra Pure Water Analyzer from the United StatesTechnical specifications:

Milli-Q system connected to Pyrogard ™ The D UF filter can remove nucleases from water and reduce the pyrogen level in ultrapure water to below 0.001EU/mL.

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