Purite Select Neptune


Three models are available in the range: Analytical, featuring a low TOC specification; Life Science, offering low bacteria, endotoxins and RNases/DNases specification; and Ultimate, which combines the benefits of both the Analytical and Life Science models. Each unit produces between 1.5 and 2 litres of ultra-pure, 18.2MΩ.cm, purified water per minute from a feedwater source of <20μS/cm.

The range utilises a number of proven technologies to produce ultra-pure, 18.2MΩ.cm water, including:
•Ion exchange cartridges incorporating monospherical, semiconductor grade mixed bed deionising resin with a low TOC leaching profile and a high activity organic absorption media.
•A 0.2μm filter and 0.05μm microfilter (Life Science and Ultimate) to remove particles, bacteria and endotoxins.
•185nm or photo-oxidising UV to cleave organic compounds into smaller charged ionic species that can be removed by ion exchange (Analytical and Ultimate).
•254nm UV to reduce bacteria by more than 99%.
All Neptune models recirculate purified water to maintain its quality and include data capture for traceability and intelligent monitoring systems that place the unit into standby when it’s not in use. They also feature semi-automated cleaning and sanitising routines, TOC indication and alarms for cartridge, UV and filter replacement.

Treated Water Specification Analytical Life Science  Ultimate 
Inorganics 18.2MΩ.cm 
pH1  Neutral Neutral   Neutral 
Bacteria <1cfu/ml  <0.1cfu/ml  <0.1cfu/ml 
Organics - TOC (ppb) <1  <5  <1 
Particles <0.2µm  Ultrafiltration  Ultrafiltration 
Endotoxins <0.25EU/ml <0.001EU/ml  <0.001EU/ml 
DNases - <4pg/µl  <4pg/µl 
RNases - <0.01ng/ml  <0.01ng/ml 
Technical Specification Analytical Life Science Ultimate 
Display panel LCD-Colour touch screen 
Pre-treatment Reverse osmosis feed or filtered to <0.2µm and <20µS/cm
Ultrapure polishing cartridge √  √ 
UV lamp 185nm
Dual wavelenght
Dual wavelenght
Internal filtration 0,1µm Ultrafiltration   Ultrafiltration  
Point of use filtration 0.2µm 0.2µm  0.2µm 
Recirculation √  √   √  
Dispense modes  Latched / hold / volumetric
Dispense flow rate  up to 2,0 l/min  up to 1,5 l/min  up to 1,5 l/min