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4ans

187views

Stain PBMCs with trypan blue; there are many blue dots in the background—are they debris or dye precipitate?

Storage & Shipping WWendyExtract4190 2026-04-30 #Trypan blue #PBMC #Cell counting

5ans

139views

For extracting exosomes from 50 mL of cell supernatant, which is more cost-effective: the precipitation method or ultracentrifugation?

Reagent Selection SSample980 2026-09-05 #Exosome extraction #Cell supernatant #Precipitation method

5ans

253views

After thawing fetal bovine serum, if white flocculent precipitate appears, can it still be used?

Lab Techniques 孙孙鹏 2026-09-09 #Fetal Bovine Serum #Primary culture #Serum precipitate

5ans

202views

What should be done if flocculent precipitate always appears in serum-free mesenchymal stem cell culture medium?

Reagent Selection PPlate881 2026-09-14 #Serum-free medium #Mesenchymal stem cells #Precipitation

5ans

221views

Looking for recommendations for an exosome extraction kit for cell culture supernatant, sample volume around 30 ml.

Lab Techniques CCellLine546 2026-09-08 #Exosome extraction #Cell supernatant #Kit

0ans

199views

How effective is Bikeman dilute hydrochloric acid for immunoprecipitation washing?

Lab Techniques RReagent5078 2026-01-02 #Beikeman Biology #Dilute hydrochloric acid #Immunoprecipitation

Recombinant Biotinyl...

4ans

163views

Can SYBR Green dye still be used with precipitation? Has a significant impact on Ct values

Medical Devices NNinaAssay 2026-06-27 #Precipitation #QC #SYBR Green

4ans

213views

Can the reagent preparation ratio be halved for the 96 well BCA method, which only measures 20 samples at a time?

Storage & Shipping 谢谢宇 2026-03-07 #BCA quantification #96-well plate #Reagent conservation

4ans

208views

Can a small amount of white flocculent sediment still be used after the melting of fetal bovine serum?

Lab Techniques PPlate7360 2026-09-07 #Fetal Bovine Serum #Precipitation #Cell culture

4ans

234views

Protein extraction biological reagent AB always forms precipitate, is it because the concentration is incorrect?

Compliance 蔡蔡采购 2026-08-14 #Protein purification #Biological reagent AB #Precipitation

5ans

217views

How to determine whether the flocculent precipitation of thawed fetal bovine serum is normal or spoiled?

Reagent Selection AAmy 2026-07-04 #Fetal Bovine Serum #Flocculent precipitate #Serum deterioration

3ans

352views

Is the small black spot in fetal bovine serum under the microscope in cell culture contaminated or precipitated?

Supplier & Sourcing PProteinZone 2026-07-24 #Fetal Bovine Serum #Cell culture #Small black spots

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