Concentrations of cations in seawater substitute were measured in two laboratories at i) the Australian National University (ANU) using inductively coupled plasma mass spectrometry (ICP-MS, iCap RQ quadrupole, Thermo Fisher) and ii) ALS Limited, Environmental Division in Sydney, using inductively coupled plasma atomic emission spectroscopy (ICP-AES). At ANU, samples were gravimetrically diluted using 2% HNO3 with five replicates. The concentrations were drift-corrected using a gravimetrically measured external standard.
Icap rq quadrupole
Manufactured by Thermo Fisher Scientific
Sourced in United States
The ICap RQ quadrupole is a laboratory instrument designed for elemental analysis. It utilizes quadrupole mass spectrometry technology to detect and quantify a wide range of elements in various sample types.
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Lab products found in correlation
2 protocols using icap rq quadrupole
1
Seawater Cation Concentration Analysis
2
Characterization of Anti-Pathogen Silver-Copper
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Microstructure observation was conducted for the developed anti-pathogen SS. Specimens were ground by abrasive papers up to 2000 grits and polished by 1 μm polishing liquid. The ZEISS Sigma 300 scanning electronic microscope (SEM) equipped with a backscattering electron (BSE) detector and energy dispersive X-ray spectroscopy (EDX) was used. Focus ion beam (FIB, FEI Helios 600i) was used to prepare transmission electron microscope (TEM) samples. Talos TEM equipped with a high-angle annular dark field (HAADF) detector and high-resolution EDX was used to identify the nano-sized precipitates.
The ISO standard 10993–12:2002 was used as the reference for the Ag/Cu ion release test. All testing samples were ground up to 2000 grit with an exposed surface area of about 1.96 cm2 and placed in a 24-well culture plate. Then, 1.5 mL of the as-prepared DMEM solution, which was used to prepare the SARS-CoV-2 virus-contained droplet, was dropped into each well containing samples. After that, the plate was also incubated at ambient conditions (at 22 ∼ 23 °C, 60 ∼ 70% relative humidity) for different time intervals. Finally, the released Cu and Ag ion concentration was measured by an inductively coupled plasma mass spectrometry (ICP-MS, iCAP RQ Quadrupole, ThermoFisher, USA). Three duplicate experiments were conducted for each material at the same time intervals.
The ISO standard 10993–12:2002 was used as the reference for the Ag/Cu ion release test. All testing samples were ground up to 2000 grit with an exposed surface area of about 1.96 cm2 and placed in a 24-well culture plate. Then, 1.5 mL of the as-prepared DMEM solution, which was used to prepare the SARS-CoV-2 virus-contained droplet, was dropped into each well containing samples. After that, the plate was also incubated at ambient conditions (at 22 ∼ 23 °C, 60 ∼ 70% relative humidity) for different time intervals. Finally, the released Cu and Ag ion concentration was measured by an inductively coupled plasma mass spectrometry (ICP-MS, iCAP RQ Quadrupole, ThermoFisher, USA). Three duplicate experiments were conducted for each material at the same time intervals.
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