Saltar al contenido
Merck
Todas las fotos(1)

Documentos clave

Ver Toda la documentación

57265

Supelco

Rampa de vacío Visiprep™ SPE

DL (Disposable Liner), 24-port model

Iniciar sesiónpara Ver la Fijación de precios por contrato y de la organización
Todas las fotos(1)

About This Item

UNSPSC Code:
12000000
En este momento no podemos mostrarle ni los precios ni la disponibilidad

material

PTFE frit
polypropylene tube

Quality Level

100

product line

Visiprep™

technique(s)

solid phase extraction (SPE): suitable

application(s)

food and beverages

¿Está buscando productos similares? Visita Guía de comparación de productos

General description

El sistema de vacío Visiprep DL (revestimiento desechable) elimina la posibilidad de contaminación cruzada cuando se procese una nueva muestra en el mismo puerto. El revestimiento consta de una conexión luer hembra de PP que se fija al SPE, y un tubo de PTFE de pared fina roscado al puerto SPE. Esto garantiza que todas las superficies de la válvula y el puerto SPE que entran en contacto con la muestra pueden ser sustituidas después de cada extracción.
La SPE es una forma de cromatografía y, como ocurre con otras técnicas cromatográficas, el control del caudal es fundamental para mantener extracciones reproducibles. A diferencia de otras rampas de vacío, el sistema Visiprep contiene un sistema valvular patentado que permite el control preciso del flujo a través de cada tubo de SPE mediante válvulas de tipo rosca, independientes, rotatorias situadas en cada puerto dentro de la tapa de la rampa. Las rampas de vacío Visiprep le permiten procesar hasta 12 (versión de 12 puertos) o 24 (versión de 24 puertos) muestras de SPE a la vez. El espaciado entre puertos es ligeramente menor en las versiones de 24 puertos que en las de 12 puertos, por lo que se recomienda tener en cuenta los tamaños de los tubos.

Application

El sistema de vacío SPE Visiprep™ se utilizó para realizar extracción en fase sólida con objeto de separar los polifenoles de las uvas y determinar el contenido de polifenoles utilizando análisis LC-MS.[1] También se utilizó para concentración y purificación de extractos de disolvente de las aguas de superficie y de los sedimentos de las aguas residuales.[2] Además se utilizó para extraer y determinar la estrona en el agua utilizando extracción en fase sólida-enzimoinmunoanálisis absorbente (SPE-ELISA).[3]

Features and Benefits

  • Válvulas de tornillo patentadas en cada puerto de SPE para un control preciso del flujo.
  • El cuenco de vidrio no se disolverá, empañará ni cambiará de color cuando se exponga a disolventes.
  • Las patas de la tapa permiten al usuario apoyarla fácilmente sobre la superficie de trabajo cuando la quite de colector
  • El manómetro y válvula de purga de tornillo resistente al disolvente ofrece un mejor control del precinto y del vacío. La válvula ocupa 1/4″ del tubo de vacío.
  • En la gradilla de recipientes de recogida de PP pueden colocarse viales automuestreadores; viales de centelleo pequeños (D.E. recomendado, 22,75 mm); tubos de ensayo de 10 y 16 mm; y matraces aforados de 1, 2, 5 y 10 ml. Para los modelos de 12 puertos, se dispone de una placa opcional para viales de centelleo de 20 ml.
Se suministra con100 revestimientos desechables (referencia 57059).

Legal Information

Visiprep is a trademark of Sigma-Aldrich Co. LLC

related product

Referencia del producto
Descripción
Precios

Z255998

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

57027

Agujas guía revestimiento de repuesto Visiprep™ DL (revestimiento desechable) (incluidas con 57044 y 57265), for use with DL (Disposable Liner), 12- and 24-port models, stainless steel, pk of 12

57035-U

Manómetro/válvula de purga de colector SPE, for use with Visiprep 12-port and 24-port models

57041

Clips de retención para gradillas de recogida de colectores Visiprep™ SPE, included with standard and DL, 12- and 24-port models, pk of 12

57059

Revestimientos desechables para los sistemas de filtración Visiprep DL (con 57044 y 57265), PTFE, pk of 100

57254

Junta de sustitución del colector Visiprep™, for use with 24-port model (standard and DL), pk of 2

57255

Gradilla de recogida de colectores Visiprep™ (incluida con los modelos estándar y DL), for use with 24-port model, includes base, 2 support rods, center plate, plate for 10 mm test tubes, 8 retaining clips

57257

Placa del colector Visiprep™ (incluida con los modelos estándar y DL salvo que se indique lo contrario), for use with 24-port model, 16 mm test tubes

57266

Tapa del colector Visiprep™ (válvulas de control de flujo y junta incluidas), for use with DL (Disposable Liner), 24-port model

57028

Válvula de control de flujo del colector Visiprep™, for use with DL (Disposable Liner) 12- and 24-port models, pk of 2

57258

Placa del colector Visiprep™ (incluida con los modelos estándar y DL salvo que se indique lo contrario), for use with 24-port model, 2 mL autosampler vials

57146-U

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

Elija entre una de las versiones más recientes:

Certificados de análisis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documentos section.

Si necesita más asistencia, póngase en contacto con Atención al cliente

¿Ya tiene este producto?

Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.

Visite la Librería de documentos

Angeles M Alonso Borbalán et al.
Journal of chromatography. A, 1012(1), 31-38 (2003-09-26)
There is considerable interest in the analysis of phenolic compounds due to their involvement in the organoleptic characteristics of foods and drinks, and their contribution to protection against cardiovascular diseases and cancers through their antioxidant activity. This article describes studies
Guangdi Wang et al.
Journal of environmental monitoring : JEM, 14(5), 1353-1364 (2012-03-23)
Endocrine disrupting compounds (EDCs), represented by steroid hormones, organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and bisphenol A have been determined in four sediment cores from the Gulf of Mexico, from New Orleans surface water (Lake Pontchartrain and Mississippi River), and
Development of a solid-phase extraction-enzyme-linked immunosorbent assay method for the determination of estrone in water.
Li, Zhilan, et al.
Analytica Chimica Acta, 503, 171-177 (2004)

Artículos

QuEChERS Cleanup and Analysis of Veterinary Drugs in Milk by LC/MS/MS

Use QuEChERS methods to analyze samples of milk for veterinary drugs.

QuEChERS Cleanup and Analysis of Veterinary Drugs in Milk by LC/MS/MS

Use QuEChERS methods to analyze samples of milk for veterinary drugs.

QuEChERS Cleanup and Analysis of Veterinary Drugs in Milk by LC/MS/MS

Use QuEChERS methods to analyze samples of milk for veterinary drugs.

QuEChERS Cleanup and Analysis of Veterinary Drugs in Milk by LC/MS/MS

Use QuEChERS methods to analyze samples of milk for veterinary drugs.

Protocolos

PAHs Determination in Paprika Powder using SPE

Paprika spice's PAH contamination risk due to environmental exposure highlights food safety concerns.

PAHs Determination in Paprika Powder using SPE

Paprika spice's PAH contamination risk due to environmental exposure highlights food safety concerns.

PAHs Determination in Paprika Powder using SPE

Paprika spice's PAH contamination risk due to environmental exposure highlights food safety concerns.

PAHs Determination in Paprika Powder using SPE

Paprika spice's PAH contamination risk due to environmental exposure highlights food safety concerns.

Contenido relacionado

Solid Phase Extraction (SPE)

Solid phase extraction purifies samples for chromatographic analysis, improving data quality and protecting analytical columns.

Extracción en fase sólida (SPE)

La extracción en fase sólida purifica las muestras para el análisis cromatográfico, mejorando la calidad de los datos y protegiendo las columnas analíticas.

Questions

1–8 of 8 Questions  

  1. Will the racks suit collection in 50mL centrifuge tubes? My principal concern is in cross contamination between adjacent samples. Does this system prevent or reduce aspiration of fine particles during elution?

    1 answer

    1. The racks for the 24-port model of the Visiprep™ SPE Vacuum Manifold are designed for use with smaller collection vessels. The widest collection vessel recommended for the 24-port model is a small 22.75 mm outer diameter scintillation vial. Since 50 mL centrifuge tubes have a nominal outer diameter of 30 mm, they would not fit this model.

      There is no containment system to separate collection vessels during sample processing. The disposable liner from each port can be inserted with slight depth into the respective collection vessel to reduce the likelihood of fine solvent particles being aspirated into the manifold.

      Helpful?

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

    1 answer

    1. Visiprep 24 Port, Product Dimensions
      7/8" (0.875") Between valves (center to center)
      1 3/8" 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.

      Helpful?

  3. 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

      Helpful?

  4. 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

      Helpful?

  5. HI ON THE Visiprep™ SPE Vacuum Manifold, WHAT is included in initial purchase ( manifold, basin material) etc

    1 answer

  6. Can I convert the Visiprep DL 24-port Manifold, Product No. 57265, to a Standard 24-port Manifold, Product No. 57250-U?

    1 answer

    1. Yes, by replacing the manifold lid with Product No. 57251 or by replacing some of the DL ports to standard ports with Product No. 57032 and Product No. 57147-U

      Helpful?

  7. What is the Department of Transportation shipping information for this product?

    1 answer

    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

      Helpful?

  8. What is the maximum vacuum for the Visiprep Vacuum Manifold, Product 57265?

    1 answer

    1. The maximum vacuum for the Visiprep Vacuum Manifold is 20 inches of Mercury (Hg).

      Helpful?

Reviews

No rating value

Active Filters

Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.

Póngase en contacto con el Servicio técnico