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57044

Supelco

Visiprep™ SPE Vacuum Manifold

DL (Disposable Liner), 12-port model

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About This Item

UNSPSC Code:
12000000
Pricing and availability is not currently available.

material

polypropylene tube

technique(s)

solid phase extraction (SPE): suitable

application(s)

environmental
food and beverages

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General description

SPE is a form of chromatography, and, as with other chromatographic techniques, control of flow rate is critical for maintaining reproducible extractions. Unlike other vacuum manifolds, the Visiprep system contains a patented valve system that allows for precise flow control through each SPE tube via rotating, independent, screw-type valves situated in each port within the manifold cover. Visiprep vacuum manifolds allow you to process up to 12 (12-port version) or 24 (24-port version) SPE samples simultaneously. Spacing between ports are slightly smaller on the 24-port versions than the 12-port versions so consideration of tube sizes is recommended.
The Visiprep DL (Disposable Liner) Vacuum Manifold eliminates the possibility of cross-contamination when processing a new sample on the same port. The liner consists of a PP female luer hub that attaches to the SPE, and thin-walled PTFE tubing that is threaded through the SPE port. This ensures that all SPE port and valve surfaces coming in contact with the sample can be replaced following each extraction.

Features and Benefits

  • Patented screw-type valves within each SPE port for precise flow control
  • Glass basin will not dissolve, fog, or discolor when exposed to solvents
  • Legs on cover allow user to easily rest cover on work surface when removed from the manifold
  • Screw-type solvent-resistant vacuum bleed gauge and valve offer better sealing and vacuum control. Valve takes 1/4″ vacuum tubing.
  • PP collection vessel rack accommodates autosampler vials; small scintillation vials (22.75 mm O.D. recommended); 10 and 16 mm test tubes; and 1, 2, 5, and 10 mL volumetric flasks. An optional plate for 20 mL scintillation vials is available for 12-port models.
Supplied with 100 disposable liners (Part No. 57059).

Legal Information

Visiprep is a trademark of Sigma-Aldrich Co. LLC

related product

Product No.
Description
Pricing

Z255998

Gum rubber laboratory tubing, tubing I.D. × O.D. 1/4 in. × 1 in.

57027

Visiprep™ DL (Disposable Liner) Replacement Liner Guide Needles (included with 57044 and 57265), for use with DL (Disposable Liner), 12- and 24-port models, stainless steel, pk of 12

57029

Visiprep™ Manifold Cover (flow control valves and gasket included), for use with DL (Disposable Liner), 12-port model

57033

Visiprep™ Manifold Replacement Gasket, for use with 12-port model (standard and DL), pk of 2

57037

Visiprep™ Manifold Collection Rack (included with standard and DL models), for use with 12-port model, includes base, 3 support rods, center plate, plate for 10 mm test tubes, 12 retaining clips

57039

Visiprep™ Manifold Plate (included with standard and DL models unless otherwise noted), for use with 12-port model (standard and DL), 16 mm test tubes

57041

Retaining Clips For Visiprep™ SPE Manifold Collection Racks, included with standard and DL, 12- and 24-port models, pk of 12

57045-U

VisIprep™ Manifold Splash Guard (not included with standard and DL models), for use with standard and DL, 12-port model

57059

Disposable Liners for Visiprep DL Manifolds (included with 57044 and 57265), PTFE, pk of 100

57028

Visiprep™ Manifold Flow Control Valve, for use with DL (Disposable Liner) 12- and 24-port models, pk of 2

57146-U

Visiprep™ Manifold Replacement Flow Control Valve Stem, for use with DL (Disposable Liner) 12- and 24-port models, pk of 24

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Andrea Molina et al.
Toxins, 11(6) (2019-06-05)
Mycotoxins are secondary metabolites, produced by fungi of genera Aspergillus, Penicillium and Fusarium (among others), which produce adverse health effects on humans and animals (carcinogenic, teratogenic and immunosuppressive). In addition, mycotoxins negatively affect the productive parameters of livestock (e.g., weight

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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. What is the spacing between ports for the manifolds?

    1 answer

    1. Visiprep 12 Port, Product Dimensions
      1 1/8" (1.14") Between valves (center to center)
      1 5/8" Between rows (center to center)
      All ports on the 12 and 24 vacuum manifolds can only be used simultaneously with 1, 3, and 6mL tubes. In order to use all ports of the manifold with 12, 20, or 60 mL SPE tubes, Long Stem Flow Control Valves are required – see product 57048.

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