Each tablet of this product should weigh between 1814.5 and 2005.5 milligrams.
P4417
Tampone fosfato salino
tablet, pH 7.2-7.6 (1 tablet/200 mL)
Sinonimo/i:
PBS
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About This Item
Prodotti consigliati
Nome del prodotto
Tampone fosfato salino, tablet
Stato
tablet
Livello qualitativo
Condizioni di stoccaggio
dry at room temperature
Colore
white
pH
7.2-7.6 (1 tablet/200 mL)
Solubilità
water: soluble
Densità
1.02 g/cm3 at 20—25 °C
1.03 g/cm3 at 20—25 °C
applicazioni
diagnostic assay manufacturing
histology
life science and biopharma
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Categorie correlate
Descrizione generale
Fuori dall′ambito della biologia cellulare, il PBS da prova della sua versatilità in applicazioni quali la formulazione di buffer su misura per ottimizzare le interazioni anticorpo-antigene nei test ELISA. In più, il PBS viene utilizzato come tampone di corsa per la cromatografia di affinità per proteine A/G, in quanto facilita la purificazione degli anticorpi basata sul legame specifico con l′antigene. Il PBS gioca un ruolo primario nel lavaggio di cellule e tessuti nell′ambito di procedure di ematologica e di biochimica. Nell′insieme, il PBS si distingue come strumento indispensabile nella ricerca biologica e in quella biochimica, in grado di assicurare isotonicità, capacità tampone, semplicità d′impiego e stabilità. I suoi vari impieghi in biologia cellulare, nella preparazione di reagenti, nella purificazione di proteine e in svariati saggi biologici mettono in evidenza il ruolo di questa soluzione tampone nel progresso della conoscenza scientifica e della comprensione dei fenomeni.
Applicazioni
- nella produzione di idrocolloidi di nanoparticelle di platino (NP-Pt)[1]
- per il lavaggio di campioni di sangue e degli stub per SEM (microscopio elettronico a scansione) prima dell′uso nel SEM[1]
- per preparare soluzioni di agglutinina del germe di grano (lectina) fluorescente (WGA)[2]
- nel saggio ELISA (saggio di immunoassorbimento enzimatico) per la diluizione dell'anticorpo di cattura[3]
- per la sospensione dei pellet di cellule durante la centrifugazione[3]
- nelle procedure degli immunodosaggi
Caratteristiche e vantaggi
- Prodotto di qualità elevata indicato per molteplici applicazioni di ricerca
- Può essere usato come componente di tamponi in applicazioni biologiche o biomediche
- Altamente idrosolubile
Ricostituzione
Altre note
Comunemente ordinati con questo prodotto
Raccomandato
Codice della classe di stoccaggio
13 - Non Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 1
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
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Certificati d'analisi (COA)
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How much should one tablet weigh for it to yield 200ml 1xPBS? Asking just to make sure we won't use chipped tablets.
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfUtile?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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If I want to make the same buffer molarity as the product P4474-1L, how many tablets should I dissolve in 1L of DI water?
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P4417 and P4474 have different components and initial concentrations. One P4417 tablet dissolved in 200 mL of deionized water yields a 0.01 M phosphate buffer, 0.0027 M potassium chloride, and 0.137 M sodium chloride at pH 7.4, 25 °C. P4474 contains 1.058 mM potassium phosphate monobasic, 154 mM sodium chloride, and 2.97 mM sodium phosphate dibasic dihydrate. Due to these differences, it is not feasible to directly match the molarity of P4474 by dissolving P4417 tablets.
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Going by instructions, 1 tab in 200 mL water gives a 1x PBS sol'n. The recipe I use for 1x PBS has the same salt concs. Sorry if this is a silly question, but can I make up a 3x PBS solution simply by dissolving 3 tablets in 200 mL of water?
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These tablets have not been tested for solubility or dissolution time at a 3X concentration. The end user would have to determine solubility experimentally. Note that 10X prepared solutions are available and may easily be diluted to the desired concentration. Please see the link below to review several of these product options:
https://www.sigmaaldrich.com/search/pbs-10x?focus=products&page=1&perpage=30&sort=relevance&term=PBS%2010X&type=productUtile?
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Hi! If with this product I want to do a 10x solution, do i dilute it in 2000 mL or first in 200mL and then do the dilution? Thanks!
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Dissolve 1 tablet in 200 ml of water to obtain: 0.01 M phosphate buffer, 0.0027 M potassium chloride and 0.137 M sodium chloride, pH 7.4 At 25 °C. These instructions are for a 1 X PBS preparation and this product is only intended for this specific concentration. If a 10X concentrate is needed, there are options in the catalog, such as the following products : 79383, P7059, 6506-OP, and 6505-OP.
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Is it possible to obtain the salt components for product 6501-200TAB? Additionally, can you provide the composition details for other PBS tablets or powder products?
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The compositions are as follows:
1. 6501-200TAB: This PBS contains 137mM NaCl, 2.7 mM KCl, and 10mM Na phosphate.
2. P3813 - powder - Packed in Pouch or PAK: Each pouch contains 8 g Sodium Chloride, 0.2 g Potassium Phosphate, monobasic, 1.15 g Sodium Phosphate, dibasic, and 0.2 g Potassium Chloride, totaling 9.55 g per packet. This is a standard PBS formulation.
3. P4417- Tablet: When dissolved in 200 mL of deionized water, one tablet yields 0.01 M phosphate buffer, 0.0027 M potassium chloride, and 0.137 M sodium chloride, at pH 7.4 and 25 °C. This product contains the same formulation as P3813 on a per liter basis (excluding tableting fillers): 8 g/L Sodium Chloride, 0.2 g/L Potassium Phosphate, monobasic, 1.15 g/L Sodium Phosphate, dibasic, and 0.2 g/L Potassium Chloride. This mixture should be diluted to one liter of water, resulting in a pH of 7.4, which can be adjusted using phosphoric acid or sodium hydroxide. The concentrations are 10 mM phosphate buffer, 2.7 mM potassium chloride, and 137 mM. These PBS tablets do not contain BSA.
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What is the osmolality of P4417 made to 1X PBS at pH 7.4?
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This PBS once diluted in 200 mL distilled water will account for:
2.7 mM potassium chloride = 5.4 mosmoles / L
137 mM sodium chloride = 274 mosmoles / LThe exact osmolality is not determined.
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Is this PBS calcium-free?
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The formulation of this product is considered proprietary. However, calcium is not included in the composition.
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What is the purity and CAS
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This product is a mixture of components. CAS numbers are not assigned to multi-component products. Likewise, as there are multiple components, purity is not reported. Upon reconstitution according to instructions, the solution will contain 0.01 M phosphate buffer, 0.0027 M potassium chloride, and 0.137 M sodium chloride.
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Filtri attivi
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