Search Results - "Honorato, Ricardo S"
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Detection and identification of Cannabis sativa L. using near infrared hyperspectral imaging and machine learning methods. A feasibility study
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (15-08-2020)“…Remote identification of illegal plantations of Cannabis sativa Linnaeus is an important task for the Brazilian Federal Police. The current analytical…”
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2
Hierarchical classification models and Handheld NIR spectrometer to human blood stains identification on different floor tiles
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (15-02-2022)“…[Display omitted] •Handheld portable near-infrared spectrometer to identify blood stains at crime scenes.•Hierarchical modeling by combining chemometric…”
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3
Spectrophotometric flow-batch determination of aluminum in plant tissues exploiting a feedback mechanism
Published in Analytica chimica acta (24-08-2001)“…The feasibility of flow-batch systems to carry out procedures exploiting feedback mechanisms is discussed, and a flow-batch analyzer is proposed for…”
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4
Classification of Brazilian and foreign gasolines adulterated with alcohol using infrared spectroscopy
Published in Forensic science international (01-08-2015)“…Highlights • Method based on middle infrared spectroscopy to classify gasoline as to its origin. • PLS-DA and SIMCA techniques used to build classification…”
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5
Spectrophotometric cocaine determination in a biphasic medium employing flow-batch sequential injection analysis
Published in Analytica chimica acta (23-11-2008)“…Quantifying cocaine in apprehended samples is important to the Brazilian Federal Police because the concentration can indicate the origin of the drug and…”
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6
A Monosegmented Flow Titration for the Spectrophotometric Determination of Total Acidity in Vinegar
Published in Analytical Sciences (1999)“…A monosegmented flow system involving sample and titrant sequential injections and the establishment of a tandem plug between two air bubbles is proposed for…”
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7
Hardness screening of water using a flow-batch photometric system
Published in Analytica chimica acta (02-08-2004)“…The versatility of the flow-batch technique has been taken advantage of to implement an extremely simple and fast water hardness screening system. The proposed…”
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8
Hierarchical method and hyperspectral images for classification of blood stains on colored and printed fabrics
Published in Chemometrics and intelligent laboratory systems (15-03-2021)“…This work describes the development of methodology based on the hierarchical soft classification method by combining multivariate analysis techniques and…”
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Detecting semen stains on fabrics using near infrared hyperspectral images and multivariate models
Published in TrAC, Trends in analytical chemistry (Regular ed.) (01-10-2017)“…Identification of semen stains is a critical step in evidence analysis in cases of sexual assaults (rape, child molestation, sexual harassments, etc)…”
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10
Analysis of Cannabinoids in Medicinal Cannabis Products: A Comprehensive Review
Published in Journal of the Brazilian Chemical Society (2024)“…Cannabis plant has been known for its medicinal use for centuries. Recent research into its pharmacology has revealed medicinal properties, promoting the use…”
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11
Evaluation and identification of blood stains with handheld NIR spectrometer
Published in Microchemical journal (01-07-2017)“…This work describes a noninvasive, nondestructive methodology for the confirmatory and in situ identification of dry blood stains deposited in different…”
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A single solution for non-linear calibration in flow injection spectrophotometry
Published in Analytica chimica acta (01-11-1999)Get full text
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13
A single solution for non-linear calibration in flow injection spectrophotometry: Kinetic determination of total protein in blood serum
Published in Analytica chimica acta (29-11-1999)“…Several procedures for the determination of clinical–biochemical parameters are based on commercial kits supplied with only one standard solution because…”
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14
Standard additions in flow injection analysis based on merging zones and gradient exploitation: application to copper determination in spirits
Published in Analytica chimica acta (01-01-1996)“…A novel strategy for implementing the standard addition method in flow analysis is described. It requires only one standard solution and provides several…”
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15
Individual sample conditioning in flow analysis. Determination of N-total in plant materials
Published in Fresenius' journal of analytical chemistry (01-11-2000)“…A flow-batch system allowing in-line individual sample matrix matching is proposed for analysis of sample lots with high variability in acidity. The…”
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16
Gunshot residues: screening analysis by laser-induced breakdown spectroscopy
Published in Journal of the Brazilian Chemical Society (2009)“…Laser induced breakdown spectroscopy (LIBS) is further developed for the detection of gunshot residue (GSR) on the hands of a suspected shooter. To develop the…”
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A flow-batch titrator exploiting a one-dimensional optimisation algorithm for end point search
Published in Analytica chimica acta (13-09-1999)“…A flow-batch hybrid system is proposed as a novel approach to automated titration. Sampling and signal processing are done as in usual flow systems, whereas…”
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18
An improved leaping detector for flow analysis applied to iron speciation in drugs
Published in Journal of analytical methods in chemistry (2000)“…A low inner volume (ca. 64 ml) probe was built up in an injector-commutator in order to behave as a photometric leaping detector in flow analysis. It comprises…”
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