Osvaldo Sponton

4 Questions 15 Answers 0 Followers

Questions related from Osvaldo Sponton

Can I use the cuvettes with the following specification in a Zetasizer Nano ZS90 (Malvern Instruments Ltd) for particle size analysis?

Cuvettes specifications They are made of optical PS and UV grade PMMA and are equipped with optically machined walls (optical faces) to ensure optimal transparency along the spectral field from...

23 January 2018 4,061 4 View

Why do some DLS measurements of protein nanoparticles present a peak around 5000 nm?

Protein nanoparticles < 300 nm present peak around 5000 nm in PSD (see attached file). This peak represents a very low volume (%). It is important to remark that peak around 5000 nm appears in...

17 June 2015 8,381 13 View

Can I use the simple quartz cuvette for size analysis by DLS (Malvern Nanosizer)?

I have a quartz cuvette which I use for fluorescence measurements (L = 1 cm). I want to know if I can use it instead of polystyrene cuvettes.

05 June 2015 6,060 6 View

How do I obtain volume Particle Size Distribution (PSD) from intensity PSD in DLS analysis?

I need the mathematical expression for volume transformation PSD from scatter intensity PSD. I know all hypothesis for transformation but I don't know how volume PSD is calculated.

27 April 2015 4,042 6 View