CHROMTECH :  Specialists in Chromatography
- Fluid Transfer Products  & 4 All Your Laboratory Needs !
- Importers & Distributors in AUSTRALIA

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Membran e Solutions


Chromtech sourced -


Syringe Filters
Membrane Filters
BottleTop Filter/Vac-Fill
SPE Tubes
Glass Chromatography AutoSampler Vials
Vacuum Flasks/Funnels
Vacuum Pumps

Bottle Top Dispensers
Single/ multiChannel
Pipette Fill
Syringe Tips

  • Glass Bottles GL45
    Safety Coated / Meshed
  • BottleCaps- MultiPort
  • Serum Vial Accessories
    Vials/ bottles; Caps,
    Screw & Crimp
    Crimpers Hand and Pneumatic
    Hand Vacuum Pumps

NormJect Plastic Syringes All PP design
LuerLok/ Slip type
SPE Tubes

NEW Thomson Filter Vials


Filtration Hints

Speed ???

FlipPage Catalogs


( ALL-MS  66p PDF)



Glass Filtration System

FAST CAP BottleTop Filter


Diaphram Vaccum Pump VPJ0332
Glass Filter System
47mm Membrane Filters
1 Liter Collection Flak
250ml Funnel with Glass Support Frit
Order Membrane Filters Separately from Membrane Solutions
 For effective vacuum Cone-joint and Membrane/Frit surface needs to be pre-wetted with filtration media
ONLY 200mm required for Filtration
DON”T USE High(er) Vac PUMP as Glassware can Implode
USE a Saftey Shield
NOW available larger
2 liter Glass Filtration  System VGF020050

Nalgene / ( Now from Thermo Scientific
as the OEM )
90mm Built-in Membrane Filter
Effective Filer Size 90mm
PES new Fast Filter for aqueous and medium polarity “Oils”
0.2 and 0.45um Pore Size
Use with GL-45 Solvent bottles and Vacuum Pump
-   Inlet Port > Pump
-   Outlet Port to Sample Bottle
x5 to x 10 FASTER that conventional Syringe Filters
x10 times sample capacity
AREA PLUS more efficient Filter material



Hand Operated Pump
Vacuum Piston Chamber 30cc -x 15 “pumps to evauate 500cc “sealed” Solvent Bottle
> Slow; so obviously not for fast filtration or large bottles/chambers

Note : a Hand Pump can “potentially” get down to >100mm HG

 BUT ONLY use at Max Vac of 250mm Otherwise risk “implosion” of GL45 Bottles ( Safety-coated version(s) are now available )

Use a Diaphragm Vacuum Pump for faster uninterrupted use
 (~200-300mm vacuum)
( higher vacuum may fracture polymeric membranes )
Order these separately !
PES is a more modern “Universal” type polymer for faster filtration;
mid-polarity to hydrophyllic matrixes

re Covid-19  : “Comrade” Dans Lock-down ‘20>21>(22) ? 
No Problems for Us ! > Yet !


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˜11-2022 FlipHTML5
Shorcut !

PayPAL Cart

? ? ? on a 350px
“ MickeyMouse “ mobile Phone
hhhmmm! forget it !

this CHROMTECH Site has evolved from literally day ONE of the WEB
<~1992+ >

“some” Supplier Product Lines may in fact have disappeared “by“attrition” in a never unchanging World

IF SO please Use
OUR INFO as a Literature “Resource

Work WITH us !
 and we’ll attempt to find ALTs

to try bringYOU
up to speed !

WE do apologise if IT ALL appears
a bit “archaic”
in design

  • if U find it difficult to Navigate etc
  • > explore our more recent SITES

We Do TRY !
at least compared to perhaps some of the more fashionable
fly--by-night” Sites

often there’s very little “content”

a la E-Bay, Amazon and the “gaggle” of “copycats” and “web pirates
> out there !

Or perhaps
“Fall Into” > Twitter
“in Your FaceBook” etc
> GOOGLE perhaps
IF ? that’s U !
BUT All THAT “crap” does tend to be
ALL a bit
“pointless !”

& more for the “crazies”
of this World !

AS for
OUR SHOP Carts ?

WE Do try keep prices up to date
more-so in later versions

as * designated !

Otherwise treat these “Indicative ONLY” but we will try & Honour
”if feasible” ?

> ASK for a QUOTE

but it has proven a hopeless task
> across tens of
 1000s of potential products items

invariably these have used PayPAL
in the past for CC Payment >
A”more Universal” system for SHOPS

> 2020+

in current times this has proven to be a bit “flakey” UNLESS
you have an “active”
funded PP Account

If U THEN “still” find PP diffcult ? >

> use “PINCH GATEWAY” ans Australian based Method > far more reliable

more in “sync”
with THE Aust Bank Regulation “System”
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All ABOVE > just part of MY Rantings


Bulshit Left Overs for GOOGLE

> perhaps ? extorted “Web Rankings”