Technology Notes

Overview of PureSure Technology used in PURELAB Chorus 1: The PureSure Concept

Technology Note 24

In all deionization processes there is a risk that weakly ionized impurities will elute from the resins and into your application as they approach exhaustion. PureSure® prevents this.

PureSure Technology used in PURELAB Chorus 1: An Overview

Technology Note 25

The PURELAB® Chorus 1 features a unique double purification pack and monitoring system providing a number of key benefits to the user.

PureSure System used in PURELAB Chorus 1

Technology Note 26

The PureSure® system ensures removal of weakly ionized impurities, increased security and advanced warning of usable purification pack life in the PURELAB® Chorus 1

PureSure System used in PURELAB Chorus 1: Extending the life of the purification pack

Technology Note 27

In a conventional water purifier, when a purification pack fed with RO permeate has reached the stage when output water purity drops below 18.2 MΩ-cm, it is necessary to change the pack in order to maintain water purity. The life of a purification pack is extended in PURELAB Chorus 1.

Real Time TOC System in the PURELAB Chorus 1

Technology Note 28

Measuring Total Organic Carbon (TOC) is a useful universal indicator of the rpesence of organic impurities. By constantly monitoring TOC we can be assured of the overall organic purity of the water.

Monitoring TOC in ultrapure laboratory water

Technology Note 29

The serious consequences of organic contamination of ultrapure water have resulted in the widespread use of Total Organic Carbon (TOC) monitoring in addition to resistivity as key indicators of water purity.

Removal of Endotoxin, RNase, DNase and Bacteria using the PURELAB Chorus 1 fitted with a Biofilter

Technology Note 30

The PURELAB® Chorus 1 provides ultrapure water directly from a pretreated water supply. When fitted with an ELGA Biofilter it provides water, which is effectively free from biologically active impurities.

Removal of Endotoxin using Point-of-Use Filters

Technology Note 31

Endotoxins are lipopolysaccharides (LPS) which shed from the outer membrane of fram-negative bacteria. Reliable experimentation involving cell division, electrophoresis and other biochemical processes all benefit from the removal of endotoxins.

Removal of Carbon Dioxide in PURELAB Chorus

Technology Note 34

Carbon dioxide (CO2) degrades the resistivity of purified water and since it exists in equilibrium with carbonic acid (H2CO3)when dissolved in water, lowers the pH.

The effect of increasing Reverse Osmosis (RO) Recovery

Technology Note 35

Reverse Osmosis (RO) is a separation and concentration process. Water with impurities is fed under pressure to a semi-permeable membrane and some of the water crosses the membrane, leaving virtually all the impurities behind in the remaining water.

PURELAB Chorus 1: The efficient use of ultraviolet (UV) light

Technology Note 36

Short wave (UV-C) light has been used sinced the early 1900s for bacterial control and TOC reduction in water. The use of UV light in our systems is to provide maximum germicidal effectiveness.

PURELAB Chorus: A different approach to sanitization

Technology Note 37

After organic and inorganic chemical impurities are removed, bacterial growth can still occur. If this bacterial growth is not minimized, it can cause problems to the purity of the water required which may impact on any test work results.