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Filters for Erweka


Dissolution filters are used when samples are taken to prevent particles of tablet from getting into the sample and affecting the spectrophotometer or HPLC results.

  • Cannula Filters - used when high levels of particulate are present
  • Filter Discs - Low volume sample probes may require an In-Line Filter Disc. These are designed to keep the filtration process outside the vessel.
  • Filter Tips - smaller than cannula filters, filter tips fit on the end of larger diameter sample probes.

Poroplast Filters

Poroplast is the brand name of a specific UHMW Polyethylene. It is essentially the same as all the Polyethylene filters used in dissolution, but sometimes the filters are referred to by this name.

Selecting a Filter

It is recommended to ensure that your filters do not absorb any compounds of interest. Most filters are made from HMWPE but if this causes an issue then other materials are available such as PVDF. It is often possible to use a syringe filter that sits outside the media if the application requires it.

Caleva tablet dissolution baths normally use cannula style filters with a large range of porosities.




Item Name Product Image Price

QLA 1 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Jar/1000) - FIL001-EW (OEM:70-000-2999)

QLA 1 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Jar/1000) - FIL001-EW (OEM:70-000-2999) £919.50

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QLA 1 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Pack/100) - FIL001-EW-a (OEM:70-000-2100)

QLA 1 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Pack/100) - FIL001-EW-a (OEM:70-000-2100) £116.50

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QLA 4 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Jar/1000) - FIL004-EW (OEM:70-000-3999)

QLA 4 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Jar/1000) - FIL004-EW (OEM:70-000-3999) £919.50

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QLA 4 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Pack/100) - FIL004-EW-a (OEM:70-000-3100)

QLA 4 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Pack/100) - FIL004-EW-a (OEM:70-000-3100) £116.50

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QLA 10 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Jar/1000) - FIL010-EW (OEM:70-000-4999)

QLA 10 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Jar/1000) - FIL010-EW (OEM:70-000-4999) £727.00

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QLA 10 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Pack/100) - FIL010-EW-a (OEM:70-000-4100)

QLA 10 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Pack/100) - FIL010-EW-a (OEM:70-000-4100) £106.00

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QLA 20 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Jar/1000) - FIL020-EW (OEM:70-000-5999)

QLA 20 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Jar/1000) - FIL020-EW (OEM:70-000-5999) £727.00

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QLA 20 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Pack/100) - FIL020-EW-a (OEM:70-000-5100)

QLA 20 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Pack/100) - FIL020-EW-a (OEM:70-000-5100) £106.00

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QLA 35 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Jar/1000) - FIL035-EW

QLA 35 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Jar/1000) - FIL035-EW £727.00

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QLA 35 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Pack/100) - FIL035-EW-a

QLA 35 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Pack/100) - FIL035-EW-a £106.00

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QLA 40 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Jar/1000) - FIL040-EW

QLA 40 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Jar/1000) - FIL040-EW £727.00

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QLA 40 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Pack/100) - FIL040-EW-a

QLA 40 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Pack/100) - FIL040-EW-a £106.00

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QLA 70 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Jar/1000) - FIL070-EW

QLA 70 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Jar/1000) - FIL070-EW £727.00

Add:

QLA 70 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Pack/100) - FIL070-EW-a

QLA 70 Micron Porous Filters, UHMW Polyethylene, 1/8" (3.2mm) ID, Erweka compatible (Pack/100) - FIL070-EW-a £106.00

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QLA Poroplast 1µm Cannula Filters, Erweka Compatible, 100/Pk - FIL001-EW-100 (90-000-0013)

Poroplast 1µm Cannula Filters Equivalent to Erweka OEM No: 90-000-0013 Pack Contents: 100 Per Pack Poroplast is the brand name of a...
QLA Poroplast 1µm Cannula Filters, Erweka Compatible, 100/Pk - FIL001-EW-100 (90-000-0013)
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QLA Poroplast 1µm Cannula Filters, Erweka Compatible, 1000/Pk - FIL001-EW-1000 (90-000-0013)

Poroplast 1µm Cannula Filters ( 1000 per pack) Equivalent to Erweka OEM No: 90-000-0013 Pack Contents: 1000 per pack Poroplast is the...
QLA Poroplast 1µm Cannula Filters, Erweka Compatible, 1000/Pk - FIL001-EW-1000 (90-000-0013)
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QLA Poroplast 4µm Cannula Filters, Erweka Compatible, 100/Pk - FIL004-EW-100 (90-000-0023)

Poroplast 4µm Cannula Filters Equivalent to Erweka OEM No: 90-000-0023 Pack Contents: 100 per pack Poroplast is the brand name of a...
QLA Poroplast 4µm Cannula Filters, Erweka Compatible, 100/Pk - FIL004-EW-100 (90-000-0023)
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QLA Poroplast 4µm Cannula Filters, Erweka Compatible, 1000/Pk - FIL004-EW-1000 (90-000-0023)

Poroplast 4µm Cannula Filters Equivalent to Erweka OEM No: 90-000-0023 Pack Contents: 1000 per pack Poroplast is the brand name of a...
QLA Poroplast 4µm Cannula Filters, Erweka Compatible, 1000/Pk - FIL004-EW-1000 (90-000-0023)
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QLA UHMW Polyethylene Cannula Filters, 10µm, Erweka Compatible - FIL010-EW-100 (90-000-0033)

UHMW Polyethylene Cannula Filters, 10µm  Equivalent to Erweka OEM No: 90-000-0033 Pack Contents: 100 per pack Poroplast is the brand name...
QLA UHMW Polyethylene Cannula Filters, 10µm, Erweka Compatible - FIL010-EW-100 (90-000-0033)
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QLA UHMW Polyethylene Cannula Filters, 10µm, Erweka Compatible - FIL010-EW-1000 (90-000-0033)

UHMW Polyethylene Cannula Filters, 10µm  Equivalent to Erweka OEM No: 90-000-0033 Pack Contents: 1000 per pack Poroplast is the...
QLA UHMW Polyethylene Cannula Filters, 10µm, Erweka Compatible - FIL010-EW-1000 (90-000-0033)
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