The successive projections algorithm

SFC Soares, AA Gomes, MCU Araujo… - TrAC Trends in …, 2013 - Elsevier
The successive projections algorithm (SPA) is a variable-selection technique that has
attracted increasing interest in the analytical-chemistry community in the past 10 years. The …

Recent development in derivative ultraviolet/visible absorption spectrophotometry: 2004–2008: A review

FS Rojas, CB Ojeda - Analytica chimica acta, 2009 - Elsevier
Several techniques have been proposed for treatment of spectrophotometric data, with the
objective of extracting a largest amount of analytical information from spectra composed of …

Advanced characterization of immobilized enzymes as heterogeneous biocatalysts

JM Bolivar, I Eisl, B Nidetzky - Catalysis Today, 2016 - Elsevier
Like in chemical catalysis, there is a clear trend in biocatalysis to carry out synthetic
transformations at the manufacturing scale heterogeneously catalyzed. Recycling of …

Derivative UV-vis absorption spectra as an invigorated spectrophotometric method for spectral resolution and quantitative analysis: Theoretical aspects and analytical …

A Parmar, S Sharma - TrAC Trends in Analytical Chemistry, 2016 - Elsevier
With the objective of extracting a large amount of analytical information from spectral data
comprising of unresolved bands, a number of techniques have been proposed. In context to …

Monitoring of the cellulosic ethanol fermentation process by near-infrared spectroscopy

ASS Pinto, SC Pereira, MPA Ribeiro, CS Farinas - Bioresource Technology, 2016 - Elsevier
Rapid, efficient, and low-cost technologies for monitoring the fermentation process during
second generation (2G) or cellulosic ethanol production are essential for the successful …

Online process control of a pharmaceutical intermediate in a fluidized-bed drier environment using near-infrared spectroscopy

J Mark, M Karner, M Andre, J Rueland… - Analytical …, 2010 - ACS Publications
In the production plant of an antibiotic substance, a new fluidized-bed drier has been
installed. For online process control of the drying progress and determination of the ideal …

Multiblock partial least squares regression based on wavelet transform for quantitative analysis of near infrared spectra

M Jing, W Cai, X Shao - Chemometrics and Intelligent Laboratory Systems, 2010 - Elsevier
Multiblock partial least squares (MB-PLS) method has been proposed for modeling the data
set with large number of variables and for making the model more interpretable. In MB-PLS …

Prospects for multivariate classification of a pharmaceutical intermediate with near-infrared spectroscopy as a process analytical technology (PAT) production control …

J Märk, M Andre, M Karner, CW Huck - European Journal of Pharmaceutics …, 2010 - Elsevier
NIR spectroscopy was applied to develop a fast and reliable quality control system for a
pharmaceutical substance to support information obtained through PAT surveillance of its …

State and covariance estimation of a semi-batch reactor for bioprocess applications

R Alexander, S Dinh, G Schultz, MPA Ribeiro… - Computers & Chemical …, 2023 - Elsevier
In this work, extended Kalman filter (EKF) and moving horizon estimation (MHE)-based
approaches are introduced and applied to a Galacto-oligosaccharides (GOS) bioprocess …

Synthesis of some heterofunctionalized penicillanic acid derivatives and investigation of their biological activities

S Demirci, A Demirbas, S Ulker… - Archiv der …, 2014 - Wiley Online Library
6‐Substituted amino‐penicillanic acid esters were synthesized starting with 6‐apa. The
compounds containing a 1, 3‐thiazole‐or 1, 3‐thiazolidinone nucleus linked to the …