Labor-Saving Dilution Device
QD-Loop device is an all-in-one, sterile, rapid system for accurate and convenient volumetric dilutions. An accurate loop or dipper comes attached to a reservoir where patented Snap-Valve™ technology holds 1mL of Butterfields or Maximum Recovery Diluent (MRD) buffer. Simply break the Snap-Valve after a sample is collected, and immediately a dilution is ready that can be poured onto dry media film or streaked onto an agar plate.
QD-Loop comes in 1:100 or 1:1000 dilution formats. This all-in-one system enables quick and convenient dilutions.

Key Benefits
All-in-one
dilution system

Multiple dilution loop options—1:100 and 1:1000 dilutions

No need to prepare dilution buffers

Eliminates the need for pipettes

Cost-effective dilution solution

Proven Performance
Read dozens of articles and case studies.
Contact Sales
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Title | Categories | Tags | Language | SDS Region | Link | doc_categories_hfilter | doc_tags_hfilter | dlp-language_hfilter | sds-region_hfilter |
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Stick Sponge and Sponge’n Bag Product Sheet | Product Sheet | Environmental Monitoring, Food Safety, Sample Collection, Sponge N Bag, Stick Sponge | English | product-sheet | environmental-monitoring food-safety sample-collection sponge-n-bag stick-sponge | english | |||
Polyurethane Sponge Sampler Testing | Technical Bulletin | Food Safety, Sample Collection, Sponge N Bag, Stick Sponge | English | technical-bulletin | food-safety sample-collection sponge-n-bag stick-sponge | english | |||
SDS-Stick-Sponge-w-10mL-Letheen-Broth-SS100LET | SDS | Food Safety, Letheen Broth, Sample Collection, Stick Sponge | English | United States | sds | food-safety letheen-broth sample-collection stick-sponge | english | united-states | |
Sponge’n Bag Instructions | Instructions | Environmental Monitoring, Sample Collection, Sponge N Bag | English | instructions | environmental-monitoring sample-collection sponge-n-bag | english | |||
Stick Sponge Instructions | Instructions | Environmental Monitoring, Sample Collection, Stick Sponge | English | instructions | environmental-monitoring sample-collection stick-sponge | english | |||
SDS Q-Swab Letheen Broth (TR) | SDS | Letheen Broth, Q Swab, Sample Collection | Turkish | Turkey | sds | letheen-broth q-swab sample-collection | turkish | turkey | |
SDS Q-Swab Letheen Broth (TH) | SDS | Letheen Broth, Q Swab, Sample Collection | Thai | Thailand | sds | letheen-broth q-swab sample-collection | thai | thailand | |
SDS Q-Swab Letheen Broth (SK) | SDS | Letheen Broth, Q Swab, Sample Collection | Korean | South Korean | sds | letheen-broth q-swab sample-collection | korean | south-korean | |
SDS Q-Swab Letheen Broth (SI) | SDS | Letheen Broth, Q Swab, Sample Collection | Slovene | Slovenia | sds | letheen-broth q-swab sample-collection | slovene | slovenia | |
SDS Q-Swab Letheen Broth (SE) | SDS | Letheen Broth, Q Swab, Sample Collection | Swedish | Sweden | sds | letheen-broth q-swab sample-collection | swedish | sweden | |
SDS Q-Swab Letheen Broth (RU) | SDS | Letheen Broth, Q Swab, Sample Collection | Russian | Russia | sds | letheen-broth q-swab sample-collection | russian | russia | |
SDS Q-Swab Letheen Broth (RO) | SDS | Letheen Broth, Q Swab, Sample Collection | Romanian | Romania | sds | letheen-broth q-swab sample-collection | romanian | romania | |
SDS Q-Swab Letheen Broth (PT) | SDS | Letheen Broth, Q Swab, Sample Collection | Portuguese | Portugal | sds | letheen-broth q-swab sample-collection | portuguese | portugal | |
SDS Q-Swab Letheen Broth (PL) | SDS | Letheen Broth, Q Swab, Sample Collection | Polish | Poland | sds | letheen-broth q-swab sample-collection | polish | poland | |
SDS Q-Swab Letheen Broth (NO) | SDS | Letheen Broth, Q Swab, Sample Collection | Norse | Norway | sds | letheen-broth q-swab sample-collection | norse | norway | |
SDS Q-Swab Letheen Broth (NL) | SDS | Letheen Broth, Q Swab, Sample Collection | Dutch | Netherlands | sds | letheen-broth q-swab sample-collection | dutch | netherlands | |
SDS Q-Swab Letheen Broth (MX) | SDS | Letheen Broth, Q Swab, Sample Collection | Spanish | Mexico | sds | letheen-broth q-swab sample-collection | spanish | mexico | |
SDS Q-Swab Letheen Broth (MA-ar) | SDS | Letheen Broth, Q Swab, Sample Collection | Arabic | Morocco | sds | letheen-broth q-swab sample-collection | arabic | morocco | |
SDS Q-Swab Letheen Broth (KR) | SDS | Letheen Broth, Q Swab, Sample Collection | Korean | South Korean | sds | letheen-broth q-swab sample-collection | korean | south-korean | |
SDS Q-Swab Letheen Broth (JP) | SDS | Letheen Broth, Q Swab, Sample Collection | Japanese | Japan | sds | letheen-broth q-swab sample-collection | japanese | japan | |
SDS Q-Swab Letheen Broth (IT) | SDS | Letheen Broth, Q Swab, Sample Collection | Italian | Italy | sds | letheen-broth q-swab sample-collection | italian | italy | |
SDS Q-Swab Letheen Broth (IE) | SDS | Letheen Broth, Q Swab, Sample Collection | English | Ireland | sds | letheen-broth q-swab sample-collection | english | ireland | |
SDS Q-Swab Letheen Broth (HU) | SDS | Letheen Broth, Q Swab, Sample Collection | Hungarian | Hungary | sds | letheen-broth q-swab sample-collection | hungarian | hungary | |
SDS Q-Swab Letheen Broth (HR) | SDS | Letheen Broth, Q Swab, Sample Collection | Croatian | Croatia | sds | letheen-broth q-swab sample-collection | croatian | croatia | |
SDS Q-Swab Letheen Broth (GR-el) | SDS | Letheen Broth, Q Swab, Sample Collection | Greek | Greek | sds | letheen-broth q-swab sample-collection | greek | greek | |
SDS Q-Swab Letheen Broth (GB) | SDS | Letheen Broth, Q Swab, Sample Collection | English | United Kingdom | sds | letheen-broth q-swab sample-collection | english | united-kingdom | |
SDS Q-Swab Letheen Broth (FR) | SDS | Letheen Broth, Q Swab, Sample Collection | French | France | sds | letheen-broth q-swab sample-collection | french | france | |
SDS Q-Swab Letheen Broth (FI) | SDS | Letheen Broth, Q Swab, Sample Collection | Finnish | Finland | sds | letheen-broth q-swab sample-collection | finnish | finland | |
SDS Q-Swab Letheen Broth (ES) | SDS | Letheen Broth, Q Swab, Sample Collection | Spanish | Spain | sds | letheen-broth q-swab sample-collection | spanish | spain | |
SDS Q-Swab Letheen Broth (DK-da) | SDS | Letheen Broth, Q Swab, Sample Collection | Danish | Denmark | sds | letheen-broth q-swab sample-collection | danish | denmark | |
SDS Q-Swab Letheen Broth (DE) | SDS | Letheen Broth, Q Swab, Sample Collection | German | Germany | sds | letheen-broth q-swab sample-collection | german | germany | |
SDS Q-Swab Letheen-Broth (CZ-cs) | SDS | Letheen Broth, Q Swab, Sample Collection | Czech | Czech Republic | sds | letheen-broth q-swab sample-collection | czech | czech-republic | |
SDS Q-Swab Letheen Broth (CN-zh) | SDS | Letheen Broth, Q Swab, Sample Collection | Simplified Chinese | China | sds | letheen-broth q-swab sample-collection | simplified-chinese | china | |
SDS Q-Swab Letheen Broth (CA-fr) | SDS | Letheen Broth, Q Swab, Sample Collection | French | Canada | sds | letheen-broth q-swab sample-collection | french | canada | |
SDS Q-Swab Letheen Broth (CA-en) | SDS | Letheen Broth, Q Swab, Sample Collection | English | Canada | sds | letheen-broth q-swab sample-collection | english | canada | |
SDS Q-Swab Letheen Broth (BR-pt) | SDS | Letheen Broth, Q Swab, Sample Collection | Portuguese | Brazil | sds | letheen-broth q-swab sample-collection | portuguese | brazil | |
SDS Q-Swab Letheen Broth (BG) | SDS | Letheen Broth, Q Swab, Sample Collection | Bulgarian | Bulgaria | sds | letheen-broth q-swab sample-collection | bulgarian | bulgaria | |
SDS Q-Swab Letheen Broth (US) | SDS | Letheen Broth, Q Swab, Sample Collection | English | United States | sds | letheen-broth q-swab sample-collection | english | united-states | |
SDS Q-Swab Buffered Peptone Water (TR) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Turkish | Turkey | sds | buffered-peptone-water q-swab sample-collection | turkish | turkey | |
SDS Q-Swab Buffered Peptone Water (TH) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Thai | Thailand | sds | buffered-peptone-water q-swab sample-collection | thai | thailand | |
SDS Q-Swab Buffered Peptone Water (SK) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Slovak | Slovakia | sds | buffered-peptone-water q-swab sample-collection | slovak | slovakia | |
SDS Q-Swab Buffered Peptone Water (SI) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Slovene | Slovenia | sds | buffered-peptone-water q-swab sample-collection | slovene | slovenia | |
SDS Q-Swab Buffered Peptone Water (SE-sv) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Swedish | Sweden | sds | buffered-peptone-water q-swab sample-collection | swedish | sweden | |
SDS Q-Swab Buffered Peptone Water (RU) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Russian | Russia | sds | buffered-peptone-water q-swab sample-collection | russian | russia | |
SDS Q-Swab Buffered Peptone Water (RO) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Romanian | Romania | sds | buffered-peptone-water q-swab sample-collection | romanian | romania | |
SDS Q-Swab Buffered Peptone Water (PT) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Portuguese | Portugal | sds | buffered-peptone-water q-swab sample-collection | portuguese | portugal | |
SDS Q-Swab Buffered Peptone Water (PL) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Polish | Poland | sds | buffered-peptone-water q-swab sample-collection | polish | poland | |
SDS Q-Swab Buffered Peptone Water (NO) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Norse | Norway | sds | buffered-peptone-water q-swab sample-collection | norse | norway | |
SDS Q-Swab Buffered Peptone Water (NL) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Dutch | Netherlands | sds | buffered-peptone-water q-swab sample-collection | dutch | netherlands | |
SDS Q-Swab Buffered Peptone Water (MX-es) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Spanish | Mexico | sds | buffered-peptone-water q-swab sample-collection | spanish | mexico | |
SDS Q-Swab Buffered Peptone Water (MA-ar) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Arabic | Morocco | sds | buffered-peptone-water q-swab sample-collection | arabic | morocco | |
SDS Q-Swab Buffered Peptone Water (KR) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Korean | South Korean | sds | buffered-peptone-water q-swab sample-collection | korean | south-korean | |
SDS Q-Swab Buffered Peptone Water (JP) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Japanese | Japan | sds | buffered-peptone-water q-swab sample-collection | japanese | japan | |
SDS Q-Swab Buffered Peptone Water (IT) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Italian | Italy | sds | buffered-peptone-water q-swab sample-collection | italian | italy | |
SDS Q-Swab Buffered Peptone Water (IE-en) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | English | Ireland | sds | buffered-peptone-water q-swab sample-collection | english | ireland | |
SDS Q-Swab Buffered Peptone Water (HU) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Hungarian | Hungary | sds | buffered-peptone-water q-swab sample-collection | hungarian | hungary | |
SDS Q-Swab Buffered Peptone Water (HR) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Croatian | Croatia | sds | buffered-peptone-water q-swab sample-collection | croatian | croatia | |
SDS Q-Swab Buffered Peptone Water (GR-el) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Greek | Greek | sds | buffered-peptone-water q-swab sample-collection | greek | greek | |
SDS Q-Swab Buffered Peptone Water (GB) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | English | United Kingdom | sds | buffered-peptone-water q-swab sample-collection | english | united-kingdom | |
SDS Q-Swab Buffered Peptone Water (FR) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | French | France | sds | buffered-peptone-water q-swab sample-collection | french | france | |
SDS Q-Swab Buffered Peptone Water (FI) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Finnish | Finland | sds | buffered-peptone-water q-swab sample-collection | finnish | finland | |
SDS Q-Swab Buffered Peptone Water (ES) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Spanish | Spain | sds | buffered-peptone-water q-swab sample-collection | spanish | spain | |
SDS Q-Swab Buffered Peptone Water (DK) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Danish | Denmark | sds | buffered-peptone-water q-swab sample-collection | danish | denmark | |
SDS Q-Swab Buffered Peptone Water (DE) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | German | Germany | sds | buffered-peptone-water q-swab sample-collection | german | germany | |
SDS Q-Swab Buffered Peptone Water (CZ) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Czech | Czech Republic | sds | buffered-peptone-water q-swab sample-collection | czech | czech-republic | |
SDS Q-Swab Buffered Peptone Water (CN-zh) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Simplified Chinese | China | sds | buffered-peptone-water q-swab sample-collection | simplified-chinese | china | |
SDS Q-Swab Buffered Peptone Water (CA-fr) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | French | Canada | sds | buffered-peptone-water q-swab sample-collection | french | canada | |
SDS Q-Swab Buffered Peptone Water (CA-en) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | English | Canada | sds | buffered-peptone-water q-swab sample-collection | english | canada | |
SDS Q-Swab Buffered Peptone Water (BR) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Portuguese | Brazil | sds | buffered-peptone-water q-swab sample-collection | portuguese | brazil | |
SDS Q-Swab Buffered Peptone Water (BG) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | Bulgarian | Bulgaria | sds | buffered-peptone-water q-swab sample-collection | bulgarian | bulgaria | |
SDS Q-Swab Buffered Peptone Water (US) | SDS | Buffered Peptone Water, Q Swab, Sample Collection | English | United States | sds | buffered-peptone-water q-swab sample-collection | english | united-states | |
Q Swab Instructions (Es) | Instructions | Q Swab, Sample Collection | Spanish | instructions | q-swab sample-collection | spanish | |||
Q Swab Instructions | Instructions | Q Swab, Sample Collection | English | instructions | q-swab sample-collection | english | |||
QD Loop Instructions | Instructions | QD Loop, Sample Collection | English | instructions | qd-loop sample-collection | english | |||
Transport Swab Instructions | Instructions | Sample Collection, Transport Swab | English | instructions | sample-collection transport-swab | english | |||
SDS EndoSwab | SDS | Medical, Sample Collection | English | United States | sds | medical sample-collection | english | united-states | |
Polyurethane vs Cellulose Sponge Report | Technical Bulletin | Pathogen Detection, Sample Collection | English | technical-bulletin | pathogen-detection sample-collection | english | |||
CalCheck Instructions | Instructions | ATP Monitoring, Calcheck, Medical, Sample Collection, SpotCheck Plus | English | instructions | atp-monitoring calcheck medical sample-collection spotcheck-plus | english | |||
Transport Swab Product Sheet | Product Sheet | Sample Collection | English | product-sheet | sample-collection | english | |||
Swab Extender Product Sheet | Product Sheet | Sample Collection | English | product-sheet | sample-collection | english | |||
QD-Loop Product Sheet | Product Sheet | Sample Collection | English | product-sheet | sample-collection | english | |||
Q-Swab Product Sheet | Product Sheet | Sample Collection | English | product-sheet | sample-collection | english |
Catalog No. | Description | Quantity | Contact Sales |
QD0100 | QD-Loop, 0.01ml sample to deliver a 1:100 dilution | 250 | Learn More |
QD1000 | QD-Loop, 0.001ml sample to deliver a 1:1000 dilution | 250 | Learn More |
- Snap-Valve™ technology
- Precisely calibrated dilution loops (honey dipper for large volumes)
- All-in-one system
- Aseptically filled and gamma-irradiated