Zetasizer Nano S90 by Malvern Panalytical

"I think the particle sizer is very easy to use, and it stays really accurate as long as routine alignment is performed to check the accuracy of the instrument."

"This instrument is able to produce reliable and reproduce able results with the minimum of method development. This enables rapid point of use data when the instrument is located in close proximity to the processing equipment. The small footprint and portable mature of the instrument aids this usage. Malverns technical knowledge and after sales assistance is of a high standard and extremely valuable when technical issues with a sample are encountered. The instrument is of a robust nature and required no maintenance or servicing other than periodic verification against a known standard.."

"It's a wonderful instrument that helps in the dosing process of our surface water plant. Very effective."

"Results are very reproducible and sample preparation for analysis is facile and fast"

"Quite easy to use. Up keep this far is beyond manageable. Look forward to using more malvern equipment in conjunction with the ZS90"

"Really good analysis. After use support is good. The instrument can be made suitable to needs. One issue that I get is that is really sensitive to impurities or undissolved particles of chitosan."

"It is friendly user and fast acquisition of datas."

"This instrument is the most basic model and is very easy to use. For the emulsions we are analyzing, this model with just the default parameters is sufficient. However, the software is easy to manipulate and has guidance and methods for common chemicals. Malvern technical support can also help you customize parameters for more unique chemicals. The instrument produces high quality, reproducible results. For those new to particle size analysis Malvern has easily accessible information on the website to help you better understand terminology and calculations automatically performed by the software. Software preparation only involves a few clicks of the mouse and can be learned in 5 minutes. The sample is inserted in disposable cuvettes, so clean up takes only a few seconds. The instrument requires 1 service visit per year, but otherwise requires little or no maintenance. The instrument improved our repeatability, was quick to learn and decreased previous clean up time so it was a good value for our lab."

"Easy to use however retrieving data to analyze at your personal desktop is near impossible."