As500

Manufactured by Agilent Technologies

Sourced in United States

The AS500 is a laboratory instrument designed for analytical tasks. It is capable of performing various spectroscopic measurements and analyses. The core function of the AS500 is to provide accurate and reliable data for scientific research and testing applications.

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Lab products found in correlation

Betasil c18, by Thermo Fisher Scientific (1 mentions) Silica gel 60, by Merck Group (1 mentions) Eclipse ver 8, by Agilent Technologies (1 mentions) Clinac ix linear accelerator, by Agilent Technologies (1 mentions)

2 protocols using as500

Analytical Characterization of Organic Compounds

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All chemicals and solvents were obtained from commercial sources without further purification. Mass spectra were recorded using Waters (Micromass ZQ) equipped with a Thermo Betasil C18 (150 × 2.1 mm, 3μ). ¹H NMR spectra were recorded on a Varian AS500 instrument. Chromatography on silica gel columns were performed, using Merck silica gel 60 (230‐400 mesh), and analytical thin layer chromatography (TLC) was conducted on a glass plate coated with a 0.25 cm thin layer of silica gel 60F₂₅₄.

Kennedy A.E., Laamanen C.A., Ross M.S., Vohra R., Boreham D.R., Scott J.A, & Ross G.M. (2017). Nerve growth factor inhibitor with novel‐binding domain demonstrates nanomolar efficacy in both cell‐based and cell‐free assay systems. Pharmacology Research & Perspectives, 5(5), e00339.

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EPID-Based Dosimetric Verification

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We used an aSi-based EPID (aS500, Varian Medical Systems, Palo Alto, CA) attached to a Varian Clinac iX Linear accelerator (Varian Medical Systems, Palo Alto, CA, USA).12 (link) This EPID has a resolution of 0.784 × 0.784 mm² with an array of 512 × 384 pixels, thus having higher resolution than Mapcheck or MatriXX, and a field size of 40 × 30 cm². The source to axis distance (SAD) was set at 100 cm and the beam was investigated at a gantry angle of 0°. Measurement with EPID was measured with no phantom and EPID dedicated software (Eclipse, Ver 8.9, Varian Medical System, USA) was used to verify dose delivery after the beam measurement.

Son J., Baek T., Lee B., Shin D., Park S.Y., Park J., Lim Y.K., Lee S.B., Kim J, & Yoon M. (2015). A comparison of the quality assurance of four dosimetric tools for intensity modulated radiation therapy. Radiology and Oncology, 49(3), 307-313.

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