Advertisement

Topics

Technical note: Rapid mineral determination in forages by X-ray fluorescence.

08:00 EDT 12th September 2018 | BioPortfolio

Summary of "Technical note: Rapid mineral determination in forages by X-ray fluorescence."

A large portion of the cow's ration is composed of forages that can vary greatly in mineral concentrations, which may affect animal performance and health. Current methods for mineral analysis require sample destruction either through wet or dry ashing and complex analytical techniques for individual minerals. Energy dispersive X-ray fluorescence (EDXRF) is a nondestructive, multi-mineral, spectroscopy technique, which makes mineral quantification simple, direct, and affordable. The study objective was to evaluate the prediction performance of EDXRF of Na, Mg, P, S, Cl, Ca, K, Mn, Fe, Cu, and Zn concentrations in forages. Twelve certified plant samples with a wide range in mineral concentrations were used to develop calibrations, and 35 forages (18 alfalfa hays, 10 grass hays, 7 corn silages) with measured mineral concentrations, which were collected over several years from 3 proficiency programs, were used as an independent validation set. All the samples were previously dried and finely ground and were prepared by compressing them into a round dense pellet, 40 mm in diameter, using a 40-ton pneumatic laboratory press. Samples were scanned using an EDXRF instrument enhanced for lighter minerals like Na and Mg. Samples were scanned at 20 keV and at 40 KeV associated with an Al filter, for a total analysis time of approximately 6 min. Calibrations were developed with Bruker SpectraEDX (Bruker, Hamburg, Germany) software and optimized to minimize the standard error of calibration. All of the minerals had acceptable calibration performance with coefficient of determination ranging from 0.93 (P) and 0.99 (Cl, Ca, and Mn) and coefficients of variation within 5 to 14%, which are similar to the coefficients of variation of the reference analysis. The coefficients of variation for Na was an exception, with a coefficients of variation of 29%. The validation set obtained similar statistical results as that observed in calibration. The root mean square error of prediction corrected for bias was similar to the standard error of calibration, indicating that it is possible to build a robust calibrations that performed well across different type of forages by using 12 reference samples with a sufficient range in mineral concentrations that were determined accurately. A bias correction was necessary to improve prediction accuracy only for K (-0.23% dry matter) and Ca (-0.16% dry matter). Energy dispersive X-ray fluorescence demonstrated the ability to be an accurate, direct, and simple technique for forage mineral analysis.

Affiliation

Journal Details

This article was published in the following journal.

Name: Journal of dairy science
ISSN: 1525-3198
Pages:

Links

DeepDyve research library

PubMed Articles [10628 Associated PubMed Articles listed on BioPortfolio]

Technical Note: Deep learning based MRAC using rapid ultra-short echo time imaging.

In this study, we explore the feasibility of a novel framework for MR-based attenuation correction for PET/MR imaging based on deep learning via convolutional neural networks, which enables fully auto...

Use of a generic violet light in the surgical management of medication-related osteonecrosis of the jaws: a technical note.

Fluorescence-guided surgery has been recommended for the diagnosis of bone margins in cases of mandibular osteonecrosis. In this article, we report a case in which a generic violet light was used in o...

Guided punctures with ultrasound volume navigation in percutaneous transforaminal endoscopic discectomy: A technical note.

Ultrasound volume navigation (UVN) has been widely used in several medical fields for the accurate navigation and decreased radiation exposure. However, few studies focus on the clinical significance ...

Technical Note: A benchtop cone-beam x-ray fluorescence computed tomography (XFCT) system with a high-power x-ray source and transmission CT imaging capability.

This report describes upgrades and performance characterization of an experimental benchtop cone-beam x-ray fluorescence computed tomography (XFCT) system capable of determining the spatial distributi...

Specific stability indicating spectrofluorimetric method for determination of ledipasvir in the presence of its confirmed degradation products; application in human plasma.

A rapid and specific spectrofluorimetric method with higher sensitivity was developed for determination of ledipasvir (LDS) in tablets and human plasma. The proposed method relies on hydrogen bonding ...

Clinical Trials [3040 Associated Clinical Trials listed on BioPortfolio]

Calprotectin for Rapid Diagnostic Infection Spontaneous of Ascites

The prognosis of spontaneous bacterial peritonitis (ISLA) remains a serious complication of cirrhosis. Rapid diagnosis of ISLA is a key issue for improving the prognosis. The determination...

NIR Fluorescence Imaging Technique in Thoracic Surgery With ICG

This study aims to first apply near-infrared fluorescence imaging technology in thoracic surgery with indocyanine green in China. To evaluate the feasibility usage of the investigators' fl...

Fluorescence QRH-882260 Peptide Imaging in the Bile Duct

Patients undergoing ERCP procedure with biliary stricture will have epithelial mucosa labeled with QRH-882260 fluorescence peptide that binds to EGFR. A custom mini-cholangioscope will be ...

A Biochip for Rapid Diagnosis of Complicated Urinary Tract Infection

The purpose of this proposal is clinical validation of an electrochemical biochip for rapid pathogen identification and antibiotic susceptibility determination.

Assessment of a New Fluorescence Imaging Technique Using Biopsies From Prostate Resection

In this study, we aim to evaluate the feasibility of anti-PSMA labelling to detect post-operative prostatic tissues by two ex vivo fluorescence techniques. We will evaluate the feasibility...

Medical and Biotech [MESH] Definitions

The number of CD4-POSITIVE T-LYMPHOCYTES per unit volume of BLOOD. Determination requires the use of a fluorescence-activated flow cytometer.

Measurement of the intensity and quality of fluorescence.

A group of phosphate minerals that includes ten mineral species and has the general formula X5(YO4)3Z, where X is usually calcium or lead, Y is phosphorus or arsenic, and Z is chlorine, fluorine, or OH-. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

An analytical method for detecting and measuring FLUORESCENCE in compounds or targets such as cells, proteins, or nucleotides, or targets previously labeled with FLUORESCENCE AGENTS.

A test to determine the relative hardness of a metal, mineral, or other material according to one of several scales, such as Brinell, Mohs, Rockwell, Vickers, or Shore. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Relevant Topic

Radiology
Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...


Searches Linking to this Article