Based on a solids content of 10 percent, a particle density of 1.05 g/cc, and a particle size of 10.0 microns, this suspension would contain 1.8 X 10E8 particles per mL. Note that if the particle size goes up slightly to 10.3 microns, the value would be 1.7 X 10E8 particles per mL.
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72986
Micro particles based on polystyrene
size: 10 μm
Synonim(y):
Latex beads from PS
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| Gabaryty przesyłki | SKU | Dostępność | Cena netto |
|---|---|---|---|
| 5 mL | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 1990,00 zł | |
| 10 mL | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 3080,00 zł |
Informacje o tej pozycji
1990,00 zł
Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności
Pomoc techniczna
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Pozwól nam pomócQuality Segment
form
aqueous suspension
crosslinking
2 % cross-linked
concentration
10% (solids)
particle size
10 μm std dev <0.2 μm, coeff var <2%
density
1.05 g/cm3
storage temp.
2-8°C
Analysis Note
For every lot exact values of particle size and standard deviation are determined with an accuracy of 0.01 μm using a Coulter Multisizer.
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Ta pozycja | |||
|---|---|---|---|
| crosslinking 2 % cross-linked | crosslinking - | crosslinking - | crosslinking 2 % cross-linked |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C |
| form aqueous suspension | form aqueous suspension | form aqueous suspension | form aqueous suspension |
| concentration 10% (solids) | concentration 10% (solids) | concentration 10% (solids) | concentration 10% (solids) |
| density 1.05 g/cm3 | density 1.05 g/cm3 | density 1.05 g/cm3 | density 1.05 g/cm3 |
| particle size 10 μm std dev <0.2 μm, coeff var <2% | particle size 600 nm std dev ≤0.03 μm | particle size 800 nm std dev ≤0.03 μm | particle size 2 μm std dev <0.05 μm, coeff var <3% |
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Klasa składowania
10 - Combustible liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves
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Numer pozycji handlu globalnego
| SKU | NUMER GTIN |
|---|---|
| 72986-5ML-F | 04061838196385 |
| 72986-10ML-F | 04061832863351 |
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Have the particles been counted? If so, how many particles are there in 1mL?
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This type of PS microspheres has sulfate groups on its surface due to the synthesis method, which could be considered functional groups that could be applied in DNA-coated applications?
1 answer-
The beads possess an anionic surface charge due to sulfate groups originating from the initiator in the polymerization reaction. However, these sulfate groups are not suitable for covalent coupling reactions. DNA binding to these particles occurs only through non-specific adsorption, if at all. For DNA extraction, contacting the local technical support team is recommended to explore suitable products. For example, MagPrep® Silica magnetic particles are designed specifically for nucleic acid purification protocols.
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do they react with cells in a solution and do they aggretate together after a time ??
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This product was not assessed for cell activity during formulation. Particles should remain evenly dispersed throughout the suspension. If settling occurs, gentle agitation or vortexing can ensure homogenization.
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Have the PS microspheres undergone surface modification? What functional groups are present, such as carboxyl (-COOH), etc.?
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These microparticles are nominal 10 µm non-functionalized microparticles based on polystyrene, without additional functional groups. The particles only have sulfate groups on their surfaces due to the synthesis method.
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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/418/501/product-dating-information-06-25-mk.pdfHelpful?
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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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