• Frequently asked questions
You can browse online or download our FAQs for your convenience.
- Selected Questions and Answers for Biomagnetic Microspheres. pdf
- Selected Q&A on Biolatex Microspheres. pdf
- Selected Questions and Answers on Biomicrosphere Coupling. pdf
- Selected Questions and Answers for Bioluminescent Microspheres. pdf
Q : What are the storage requirements for chromatographic microspheres?
A Carboxyl modified microspheres are stored at 2-25 ℃; If stored for a long time, it is recommended to store at 2-8 ℃. Streptomycin avidin (SA) modified microspheres were stored at 2-8 ℃.
Notes: 1 None of them can be frozen; 2. Fluorescent microspheres need to avoid light; 3. It is not recommended to store tightly against the inner wall of the refrigerator when stored at 2-8 ℃, and it is also important to avoid situations such as bottle inversion.
Q : What testing items are chromatographic microspheres suitable for?
A The detection items applicable to chromatographic microspheres mainly include:
Tumor marker detection: Pepsinogen 1 (PG1), Pepsinogen 2 (PG2), Carcinoembryonic Antigen (CEA), Alpha Fetoprotein (AFP), etc; Inflammatory indicators such as interleukin-6 (IL-6) and procalcitonin (PCT);
• Detection of respiratory infectious diseases: COVID-19 antigen detection, A-B virus antibody detection, etc;
• Food safety testing: aflatoxin B1 and ochratoxin A, etc;
• Aquatic product safety testing: Chloramphenicol, etc.
Q : What is the difference between time-resolved fluorescent microspheres and ordinary fluorescent microspheres?
A Time resolved fluorescent microspheres contain rare earth elements and have a longer fluorescence half-life, which can reduce background signals and improve detection sensitivity.
Therefore, when measuring the signal of the marker, it is only necessary to delay the measurement time until the fluorescence of the background substance is fully attenuated before conducting the measurement, which can effectively eliminate the interference of other non-specific fluorescence. The time-resolved fluorescence microspheres have a long interval between the excitation wavelength and the emission wavelength, and a large Stokes shift, which can eliminate matrix interference and improve detection accuracy. Therefore, it has significant advantages over ordinary fluorescent microspheres.
Q : What is the production capacity of microspheres? Is it stable? How long is the usual delivery time?
A Stable production capacity, as follows: Currently, the single batch production capacity of time-resolved fluorescent microspheres can reach 5L; The current single batch production capacity of colored latex microspheres is 20L; The delivery time is usually 2 weeks.
