July 2022

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A Look at Inorganic Analyses, Proficiency Tests, and Best Practices, Part II

Patricia L. Atkins;Lauren Stainback
July 1st 2022
ArticleColumn: Atomic Perspectives

Understanding the proper ways to plan, run, and report proficiency tests will help you avoid errors and contamination.

data visualized against a bluish-pink background

Data Transforms in Chemometric Calibrations: Simple Variations of MLR, Part 2

Howard Mark;Jerome Workman, Jr.
July 1st 2022
ArticleColumns: Chemometrics in Spectroscopy

We examine variations of the multiple linear regression (MLR) algorithm confer special properties on the model that the algorithm produces and critique the use of derivatives in calibration models.

traditional chinese medicines.

Comparative Study of Heavy Metals Analysis in Mongolian Medicines Based on High Sensitivity X-ray Fluorescence Spectroscopy and ICP-MS

Ling Gao;Donghua Di;Xiaojing Liu;Fei Teng
July 1st 2022
ArticlePeer-Reviewed Research

In this study, X-ray fluorescence (XRF) spectroscopy was used to analyze heavy metals in five traditional Mongolian medicines, and the results were compared to those obtained using ICP-MS.

astronaut with outer space in the background

Simulation of an Algorithm for Space Target Materials Identification Based on vis-NIR Hyperspectral Data

Qingbo Li;Ruiguang Zhao;Xingjin Miao
July 1st 2022
ArticlePeer-Reviewed Research

A model based on similarity regularized nonnegative matrix factorization (SRNMF) can be used in space exploration and national security applications to exploit the spatial information in an image of a space target.

leukemia cells and red blood cells

Analysis of Serum from Acute Leukemia Patients Using Surface-Enhanced Raman Spectroscopy (SERS)

Hongwen Han;Jingjing Gong;Yannan Tian
July 1st 2022
ArticlePeer-Reviewed Research

This study shows that surface-enhanced Raman spectroscopy (SERS) of serum can provide an experimental basis for diagnosing leukemia in patients.