Acetonitrile (>99.9%, Sigma-Aldrich HPLC grade), tetrahydrofuran (>99.9%, Sigma Aldrich HPLC grade) and water (HPLC Plus grade water, Sigma-Aldrich, Saint Louis, MO, USA) were used for HPLC analysis. Syringe filters (25 mm, PTFE membrane 0.45 μm) were obtained from Agilent Technologies.
Hplc plus grade water
Manufactured by Merck Group
Sourced in United States
HPLC Plus grade water is a high-purity water solution designed for use in high-performance liquid chromatography (HPLC) applications. It is carefully purified and filtered to meet the stringent requirements of HPLC systems, ensuring minimal interference and high-quality analytical results.
Automatically generated - may contain errors
Lab products found in correlation
2 protocols using hplc plus grade water
1
HPLC Solvent Preparation and Filtration
2
Hydrophilic Pyrogenic Nanosilica Suspensions
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Hydrophilic pyrogenic nanosilica (silica NPs, Wacker Chemie AG) and the solvent, HPLC Plus grade water (Sigma-Aldrich) were used as received. The silica NPs (HDK® H20) consist of primary spherical particles (12 nm diameter) sintered to form branched aggregates of size 180 nm.
The branched aggregates sizes were confirmed by additional dynamic light scattering (DLS) measurements. Different initial droplet compositions with concentrations ranging from 0.10 -0.60 % v/v homogeneous silica NPs suspensions were prepared by mixing weighed samples of the silica NPs (HDK® H20) in water followed by magnetic stirring at room temperature (293 K) for 30 minutes. The suspension was further sonicated for 30 minutes to obtain uniform mixing. At concentrations above 0.6 % v/v, we had problems with blocking of the nozzle of the droplet-ondemand generator and, hence, were unable to study droplet compositions with concentrations above 0.6 % v/v.
The branched aggregates sizes were confirmed by additional dynamic light scattering (DLS) measurements. Different initial droplet compositions with concentrations ranging from 0.10 -0.60 % v/v homogeneous silica NPs suspensions were prepared by mixing weighed samples of the silica NPs (HDK® H20) in water followed by magnetic stirring at room temperature (293 K) for 30 minutes. The suspension was further sonicated for 30 minutes to obtain uniform mixing. At concentrations above 0.6 % v/v, we had problems with blocking of the nozzle of the droplet-ondemand generator and, hence, were unable to study droplet compositions with concentrations above 0.6 % v/v.
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