BRAND® ULR™ Ultra Low Retention Pipette Tips

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BRAND® ULR™ Ultra Low Retention Pipette Tips

Product and ordering information for Ultra Low Retention Pipette tips.  For air displacement pipettes: volumes from 0.1µl to 1000µl; sterile & non-sterile; filter & non-filter; no additives to leach; autoclavable.

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Description

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All BRAND pipette tips are produced using the most advanced cleanroom techniques to ensure consistently high quality. The tips are manufactured in an environmentally friendly manner using only high-purity polypropylene, free from oleamide and diHEMDA - additives which can interfere with biological tests. The surface of the BRAND® ULR™ Ultra-Low Retention tips are treated with a special patented physicochemical process producing a surface tension over 50% less than PTFE! There are no additives to leach out, or coatings to contaminate the sample. These tips greatly reduce sample loss, and provide higher reproducibility. BRAND® ULR™ tips are available non-sterile, BIO-CERT® sterile, or filtered BIO-CERT® sterile in volume sizes ranging from 0.1-1µL to 50-1000µL. Product Features:

  • Manufactured without lubricants
  • Cadmium-free pigments
  • Graduation for quick volume check
  • All rack packed tips are free from DNA(<40fg), RNase(<8.6fg), ATP(<1fg) and endotoxins (<1fg).
  • Autoclavable at 121°C (2bar), acc. DIN EN 285

Product No. & Specs

Standard BRAND® ULR™ Pipette Tips

 0.1-20µL (37mm long)
  Pack type
Qty/Pack
Pack of
Non-Sterile
Cat. No.
Sterile
Cat. No.
  TipBox, ULR
480
5 boxes, 96 each
732302BT
-
  TipBox Sterile, ULR
960
10 boxes, 96 each
-
732322

 0.5-20µL (46mm long; Graduations at 2µL and 10µL)
  Pack type
Qty/Pack
Pack of
Non-Sterile
Cat. No.
Sterile
Cat. No.
  TipBox, ULR
480
5 boxes, 96 each
732304
-
  TipBox Sterile, ULR
960
10 boxes, 96 each
-
732324
  TipStack™, ULR
960
2x5 refills, 96 each
732344
732364

 1-50µL (50mm long; Graduations at 2.5µL, 10µL, 25µL and 50µL)
  Pack type
Qty/Pack
Pack of
Non-Sterile
Cat. No.
Sterile
Cat. No.
  TipBox, ULR
480
5 boxes, 96 each
732306
-
  TipBox Sterile, ULR
960
10 boxes, 96 each
-
732326

 2-200µL (50mm long; Graduations at 20µL and 100µL; bulk tips are yellow colored)
  Pack type
Qty/Pack
Pack of
Non-Sterile
Cat. No.
Sterile
Cat. No.
  TipBox, ULR
480
5 boxes, 96 each
732308
-
  TipBox Sterile, ULR
960
10 boxes, 96 each
-
732328
  TipStack™, ULR
960
2x5 refills, 96 each
732348
732368

 5-300µL; (53mm long; Graduations at 50µL and 100µL)
  Pack type
Qty/Pack
Pack of
Non-Sterile
Cat. No.
Sterile
Cat. No.
  TipBox, ULR
480
5 boxes, 96 each
732310
-
  TipBox Sterile, ULR
960
10 boxes, 96 each
-
732330

 50-1000µL; (70mm long; Graduations at 250µL, 500µL and 1000µL; bulk tips are blue colored)
  Pack type
Qty/Pack
Pack of
Non-Sterile
Cat. No.
Sterile
Cat. No.
  TipBox, ULR
480
5 boxes, 96 each
732312
-
  TipBox Sterile, ULR
960
10 boxes, 96 each
-
732332
  TipStack™, ULR
960
2x5 refills, 96 each
732352
732372


Filter BRAND® ULR™ Pipette Tips

 0.1-1µL (37mm long)
  Pack type
Qty/Pack
Pack of
Non-sterile
Cat. No.
Sterile
Cat. No.
  TipBox, ULR
480
5 boxes, 96 each
732802
-
  TipBox Sterile, ULR
960
10 boxes, 96 each
-
732822

 0.5-10µL (46mm long; Graduations at 2µL and 10µL)
  Pack type
Qty/Pack
Pack of
Non-sterile
Cat. No.
Sterile
Cat. No.
  TipBox, ULR
480
5 boxes, 96 each
732804
-
  TipBox Sterile, ULR
960
10 boxes, 96 each
-
732824

 1-20µL (50mm long; Graduations at 2.5µL and 10µL)
  Pack type
Qty/Pack
Pack of
Non-sterile
Cat. No.
Sterile
Cat. No.
  TipBox, ULR
960
10 boxes, 96 each
732806
-
  TipBox Sterile, ULR
960
10 boxes, 96 each
-
732826

 2-20µL (50mm long; Graduations at 20µL)
  Pack type
Qty/Pack
Pack of
Non-sterile
Cat. No.
Sterile
Cat. No.
  TipBox, ULR
5 boxes, 96 each
732808
-
  TipBox Sterile, ULR
960
10 boxes, 96 each
-
732828

 5-100µL (53mm long; Graduations at 50µL and 100µL)
  Pack type
Qty/Pack
Pack of
Non-sterile
Cat. No.
Sterile
Cat. No.
  TipBox, ULR
480
5 boxes, 96 each
732810
-
  TipBox Sterile, ULR
960
10 boxes, 96 each
-
732830

 5-200µL (53mm long; Graduations at 50µL and 100µL)
  Pack type
Qty/Pack
Pack of
Non-sterile
Cat. No.
Sterile
Cat. No.
  TipBox, ULR
480
5 boxes, 96 each
732812
-
  TipBox Sterile, ULR
960
10 boxes, 96 each
-
732832

 50-1000µL (70mm long; Graduations at 250µL, 500µL and 1000µL)
  Pack type
Qty/Pack
Pack of
Non-sterile
Cat. No.
Sterile
Cat. No.
  TipBox, ULR
480
5 boxes, 96 each
732814
-
  TipBox Sterile, ULR
960
10 boxes, 96 each
-
732834

Selection Chart

Pipette tip selection chart

FAQs

How are your BRAND® ULR™ tips treated?

The surfaces of the BRAND® ULR™R tips are produced through a special, patented physiochemical process. As such, it is covalently bound to the surface of the tip and cannot leach out to contaminate samples.

Are the BRAND® ULR™ tips autoclavable?

Yes. The tips can be autoclaved at 121°C (2bar) without damaging the material properties.

Are your tips "universal" tips?

There really isn't such a thing as a "universal" tip. All pipette manufacturers have slightly different dimensions on their tip cones - different diameters, different tapers, etc. However, BRAND tips fit most major brands of pipettes, and are specifically designed to work well with BRAND, most Eppendorf, Gilson, Rainin (excluding LTS), Sartorius/Biohit and Thermo/Finnpipette (excluding Clip-Tip) pipettes. They may fit well with other pipettes with similar designs. Ask for a sample.

RNAse-free, DNA-free, ATP-free, Endotoxin-free ... What do all those specifications on tips mean?

RNAse is an enzyme found in bacteria. It is used by the bacteria to break down foreign nucleic acids that might enter the bacteria, analogous to the way our immune system gets rid of bacteria. Likewise, presence of Adenosine Triphosphate (ATP), the energy currency of cells, and Deoxyribonucleic acid (DNA), indicate the presence of bacteria or other living things during the tip manufacturing process. Killing these bacteria by autoclaving will not remove or inactivate these biological products. If they are present, they can interfere with molecular work, such as PCR. Assays to directly determine the presence of DNA, RNAse or ATP are very difficult and expensive to do. Our BIO-CERT® tips are assayed for these molecules, and are certified free of these substances within tight limits. Many more routine sterile applications, such as cell culture, do not require the absence of DNA, RNase or ATP, however they can require the tips to be endotoxin-free.

Endotoxin is also a substance found on the surface of bacteria. It is very easy to detect via a extremely sensitive process called the Limulus Amebocyte Lysate Assay BRAND's sterile tips are tested this way regularly, and are found to be under 0.06 I.E./mL, which is the limit of detection. This indicates that the tips are free of bacteria, which infers that they are free of RNAse and DNAse. Because our PD-Tip™ syringe tips have a large amount of plastic in each tip, it is very difficult to be able to certify each lot of tips to be free of all of these chemicals. BIO-CERT® PD-Tip™ syringe tips are available for an additional fee.

Are BRAND tips free of oleamide and DiHEMDA?

Yes. BRAND exclusively uses raw materials that are free from di(2-hydroxyethyl) methyldodecylammonium (DIHEMDA) and 9-octadecenamide (oleamide) - additives that are often found in raw polypropylene. These additives can interfere with biological tests, leading to inaccurate results. Also, only highly polished molds are used, so no parting agents or demolding aids are needed.

Sometimes you will refer to "yellow" tips and "blue" tips in quotes. Why is that?

Originally, all 200µL pipette tips were colored yellow, and all 1,000µL tips were colored blue. People would refer to them by their colors, as it was easier than specifying the size. Later it was determined that some of the dyes used to color the tips could interfere with their work. So colorless versions were developed of the tips, but often they were still called "yellow" or "blue" even though the tips were no longer colored. BRAND tips, when purchased bulk are colored for easier identification, but are free of cadmium dyes, which was the most problematic. BRAND tips, when purchased in racks are colorless to ensure no problems. The plates on which the tips are inserted are colored yellow, blue, dark gray or green for easy identification. The dark gray carrier plates indicate our special nano-cap™ ultramicro tips, and green indicates our 300µL tips. Boxes of ultramicro tips have colorless carrier plates.

What is a "lambda" as a unit of volume measurement?

A "lambda" (λ) is sometimes used as a shorthand for a microliter (µL). They are the same thing: 1,000µL = 1,000 λ = 1mL.

Tech Info

Application Notes

BRAND Ultra Low Retention Tips: Determining Residual Liquids Using Gravimetric Measurement

BRAND Ultra Low Retention Tips: Comparison of Various Competitor Products Using Photometric Measurements

Literature

Catalog Page

Sample Request

To request a free sample click here and complete the sample request form.