Page 33 - Shimadzu Journal vol.7 Issue1

Selection 7 Light Elements
X-Ray Fluorescence Analysis of Light Elements in Liquid Samples – EDX-8100 and Helium Purge Unit –
Shimadzu’s EDX-8100 is an energy dispersive X-ray fluorescence spectrometer with high sensitivity for light elements and can be
configured with an optional helium purge unit. The helium purge unit enables high-sensitivity analysis of light elements in samples
that cannot be depressurized to a vacuum state such as solutions and samples that generate gas.

Selection 8 Film Thicknesses
Quantitative Analysis of Film Thicknesses of Multi-Layer Plating Used on Cards
A three-layer plating of gold (Au), nickel (Ni), and copper (Cu) is often applied to the contact areas of electronic devices and IC
chips. The amount of plating material deposited (film thickness) can be measured non-destructively by using X-ray
fluorescence (XRF) spectrometry. This article introduces a simple quantitative analysis of Au, Ni, and Cu film of a three-layer plating
by employing the thin-film fundamental parameter (FP) method

Selection 9 TOC Analysis
TN and NOx Measurement for a Denitration System
A denitration system decomposes NOx into nitrogen and water to reduce atmosphere pollution by adding dry ammonia, aqueous
ammonia or urea solution as a reducing agent to the flue gas. This article introduces example measurements of urea solution using
a system comprising Shimadzu's TOC-L and optional TNM-L total nitrogen unit.

Selection 10 Caffein and Acetic Acid
Quantitative Measurement of Caffeine and Acetic Acid
– Advantages of Low Stray Light and High Photometric Repeatability –
The recent demands for the quantitative measurement by UV-Visible spectroscopy are the quantitation of a component with low
concentration and the quantitation of a solution with high concentration without diluting it. In this report, the quantitation limit
and the linearity of a calibration curve for caffeine aqueous solutions and acetic acid aqueous solutions obtained by using the
UV-1900 are demonstrated.

Selection 11 Metal Nanoparticle
Measurement of Time-dependent Change of Metal Nanoparticles
– Application of Ultrafast Scanning Speed of UV-1900 –
This time, absorption spectra of gold nanoparticles and silver nanoparticles used as antibacterial coating were measured with the
newly developed UV-1900 UV-VIS spectrophotometer. It is effective for the investigation of the light reduction phenomenon which
is shown in this report and needs the spectrum measurement in the long wavelength range in a short time.

Selection 12 Tap Water
Analysis of Bromate in Tap Water Using a Triple Quadrupole LC/MS/MS (2)
Bromate in tap water is generated by advanced water treatment processes such as ozone disinfection in the process of water purification.
In this article, we introduce the results of our examination of LC/MS/MS analysis utilizing a mixed-mode column (multi-mode column) as a
new LC separation mode.

Selection 13 Phthalate Esters
Comparison of Screening Method (Py-GC/MS) and Quantitative Method
(Solvent Extraction–GC/MS) for Phthalate Esters Analysis
From 2019, four phthalate esters (diisobutyl phthalate (DIBP), n-dibutyl phthalate (DBP), benzyl butyl phthalate (BBP) and di
(2-ethylhexyl) phthalate (DEHP)) will be added to restricted substances in the amended RoHS Directive. In this technical report, the
quantitative results between the solvent extraction-GC/MS method and the Screening System for Phthalate Esters “Py-Screener”
(Py-GC/MS method) were compared.

Selection 14 Tap Water
Analysis of Formaldehyde by the Derivatization- High Performance
Liquid Chromatography Method, in Compliance with Water Quality Standards
This article introduces an example of the analysis of formaldehyde in compliance with the derivatizationhigh performance liquid
chromatography method (hereinafter the official method), using a Shimadzu Prominence-i high performance liquid chromatograph.

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