The analysis of particulate matter (PM) in dilute solutions is an important target for environmental, geochemical and biochemical researches. Here we show how the microdrop technology may allow to control, through the evaporation of small droplets, the deposition of insoluble materials dispersed in a solution on a well-defined area with a specific spatial pattern. Using this technology the superficial density of the deposited solute can be accurately controlled. In particular, it becomes possible to deposit an extremely reduced amount of insoluble material -in the order of few μg- on a confined area, thus allowing a relatively high superficial density to be reached within a limited time. In this work we quantitatively compare the microdrop technique for the preparation of particulate matter samples with the classical filtering technique. After having been optimized, the microdrop technique allows to obtain a more homogeneous deposition and limit sample consumption of a factor ~25. This method is potentially suitable for many novel applications in different scientific fields

Macis, S., Cibin, G., Maggi, V., Baccolo, G., Hampai, D., Delmonte, B., et al. (2018). Microdrop Deposition Technique: Preparation and Characterization of Diluted Suspended Particulate Samples. CONDENSED MATTER, 3(3), 1-9 [10.3390/condmat3030021].

Microdrop Deposition Technique: Preparation and Characterization of Diluted Suspended Particulate Samples

Valter Maggi;Giovanni Baccolo;Barbara Delmonte;
2018

Abstract

The analysis of particulate matter (PM) in dilute solutions is an important target for environmental, geochemical and biochemical researches. Here we show how the microdrop technology may allow to control, through the evaporation of small droplets, the deposition of insoluble materials dispersed in a solution on a well-defined area with a specific spatial pattern. Using this technology the superficial density of the deposited solute can be accurately controlled. In particular, it becomes possible to deposit an extremely reduced amount of insoluble material -in the order of few μg- on a confined area, thus allowing a relatively high superficial density to be reached within a limited time. In this work we quantitatively compare the microdrop technique for the preparation of particulate matter samples with the classical filtering technique. After having been optimized, the microdrop technique allows to obtain a more homogeneous deposition and limit sample consumption of a factor ~25. This method is potentially suitable for many novel applications in different scientific fields
Articolo in rivista - Articolo scientifico
sinchrotron radiation XRF, XANES, ultradiluted samples
English
2018
3
3
1
9
21
open
Macis, S., Cibin, G., Maggi, V., Baccolo, G., Hampai, D., Delmonte, B., et al. (2018). Microdrop Deposition Technique: Preparation and Characterization of Diluted Suspended Particulate Samples. CONDENSED MATTER, 3(3), 1-9 [10.3390/condmat3030021].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/201734
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