Results 11 to 20 of about 72,257 (309)
Independent components in spectroscopic analysis of complex mixtures [PDF]
Chemometrics and Intelligent Laboratory Systems, 2010, 103,
108-115, 2010 We applied two methods of "blind" spectral decomposition (MILCA and SNICA) to quantitative and qualitative analysis of UV absorption spectra of several non-trivial mixture types.
Alexander Kraskov +35 more
core +2 more sources
Fast Selection of Spectral Variables with B-Spline Compression [PDF]
Chemometrics and Intelligent Laboratory Systems / I Mathematical
Background Chemometrics Intell Lab Syst 86, 2 (2007) 208-218, 2007 The large number of spectral variables in most data sets encountered in spectral chemometrics often renders the prediction of a dependent variable uneasy.
François, Damien +4 more
core +5 more sources
A New Mixed Biased Estimator for Ill‐Conditioning Challenges in Linear Regression Model With Chemometrics Applications [PDF]
Analytical Science Advances, Volume 6, Issue 1, June 2025.ABSTRACT In linear regression models, the ordinary least squares (OLS) method is used to estimate the unknown regression coefficients. However, the OLS estimator may provide unreliable estimates in non‐orthogonal models. This article introduces a novel mixed‐biased estimator to address the challenges posed by the non‐orthogonal model.
Muhammad Amin +3 more
wiley +2 more sources
Identification of Rubiae Radix et Rhizoma and Its Adulterants Based on “Mass Spectrometry Matrix” [PDF]
Analytical Science Advances, Volume 6, Issue 1, June 2025.ABSTRACT Galium elegans Wall. in Roxb. (GWR) and Rubia tibetica Hook. f. (RTH) are common adulterants of rubiae radix et rhizoma (RRR). To strengthen RRR adulteration regulation, this paper conducted the adulteration analysis of RRR according to the “mass spectrometry (MS) matrix”.
Xianrui Wang +7 more
wiley +2 more sources
A Review of Analytical and Chemometric Strategies for Forensic Classification of Homemade Explosives [PDF]
Analytical Science Advances, Volume 6, Issue 1, June 2025.ABSTRACT Homemade explosives (HMEs), commonly used in improvised explosive devices (IEDs), present a significant forensic challenge due to their chemical variability, accessibility and adaptability. Traditional forensic methodologies often struggle with environmental contamination, complex sample matrices and the non‐specificity of precursor residues ...
Abdulrahman Aljanaahi +3 more
wiley +2 more sources
Current PAT Landscape in the Downstream Processing of Biopharmaceuticals [PDF]
Analytical Science Advances, Volume 6, Issue 1, June 2025.ABSTRACT Protein‐based therapeutics have revolutionized modern medicine, addressing complex diseases with unprecedented specificity and efficacy. The rising demand for biologics has driven the evolution of biomanufacturing practices to ensure consistent quality and operational efficiency.
Pavithra Sathiyapriyan +6 more
wiley +2 more sources
Mid infrared spectroscopy and milk quality traits: a data analysis competition at the "International Workshop on Spectroscopy and Chemometrics 2021" [PDF]
Chemometrics and Intelligent Laboratory Systems, 2021, Volume 219,
104442, 2021 A chemometric data analysis challenge has been arranged during the first edition of the "International Workshop on Spectroscopy and Chemometrics", organized by the Vistamilk SFI Research Centre and held online in April 2021. The aim of the competition was to build a calibration model in order to predict milk quality traits exploiting the information ...
arxiv +1 more source
Robust multivariate methods in Chemometrics [PDF]
in: Comprehensive Chemometrics, 2nd Edition, Steven Brown, Roma
Tauler and Beata Walczak (Eds.), Elsevier, 26 May 2020, ISBN: 9780444641656,
Volume 3, Section 3.19, pages 393-430, 2020 This chapter presents an introduction to robust statistics with applications of a chemometric nature. Following a description of the basic ideas and concepts behind robust statistics, including how robust estimators can be conceived, the chapter builds up to the construction (and use) of robust alternatives for some methods for multivariate analysis ...
arxiv +1 more source
New frontiers in thermal analysis: A TG/Chemometrics approach for postmortem interval estimation in vitreous humor [PDF]
, 2017 The coupling of thermogravimetric analysis (TG) associated with chemometrics is proposed as an innovative approach in thanatochemistry in order to develop a new analytical tool using thermal analysis for the characterization of vitreous humor.
Fabiano, MARIA AURORA +7 more
core +1 more source
Vertically Aligned Ultrathin 1T-WS2 Nanosheets Enhanced the Electrocatalytic Hydrogen Evolution
Nanoscale Research Letters, 2018 Efficient evolution of hydrogen through electrocatalysis holds tremendous promise for clean energy. The catalytic efficiency for hydrogen evolution reaction (HER) strongly depends on the number and activity of active sites. To this end, making vertically
Qunying He +3 more
doaj +1 more source