scholarly journals Wood Fuel Procurement to Bioenergy Facilities: Analysis of Moisture Content Variability and Optimal Sampling Strategy

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 359
Author(s):  
Elena Leoni ◽  
Manuela Mancini ◽  
Giovanni Aminti ◽  
Gianni Picchi
Keyword(s):  
Moisture Content ◽  
Sampling Strategy ◽  
Quality Parameter ◽  
Fast Determination ◽  
Three Samples ◽  
Different Seasons ◽  
Fuel Heterogeneity ◽  
Wood Fuels ◽  
And Storage

Moisture content is the most relevant quality parameter for wood fuels. Effective and fast determination of moisture of incoming feedstock is essential in the management of bioenergy facilities. The availability of fast and reliable moisture meters based on innovative technologies simplifies this task. However, in Mediterranean conditions the inherent variability of wood fuels calls for a careful sampling strategy if representative results are required while facing acceptable analytic costs. The present study is aimed at measuring the fuel heterogeneity and defining accordingly the appropriate number of samples to be analyzed in order to get reliable moisture-content results. A total of 70 truckloads (about 2270 t of woodchips) were sampled during commercial operations in two different seasons. Five samples were collected from each load and measured with standard method and magnetic resonance gauge. Results show that the variability of moisture content is influenced by mixing of species and storage of biomass. Heterogeneity can vary greatly also within single truckloads, to the point that three samples are needed to achieve about 90% of estimates within the desired precision limits. In the case of larger lots, such as barge or ship loads, 20 samples can provide sufficient precision in most scenarios.

Fast Determination of the Moisture Content of Grass using Electromagnetic Fields

2001 ◽  
Author(s):  
H.G.J. Snell ◽  
B. Kulig ◽  
W. Lücke ◽  
H.F.A. Van den Weghe
Keyword(s):  
Moisture Content ◽  
Electromagnetic Fields ◽  
Fast Determination

scholarly journals DETERMINATION OF MOISTURE CONTENT AND STORAGE POTENTIAL OF GUANANDI SEEDS

FLORESTA ◽  
2019 ◽  
Vol 50 (1) ◽  
pp. 953
Author(s):  
Rosemeire Carvalho Silva ◽  
Camila Ribeiro de Souza Grzybowski ◽  
Andreza Cerioni Belniaki ◽  
Elisa Serra Negra Vieira ◽  
Maristela Panobianco
Keyword(s):  
Moisture Content ◽  
Storage Potential ◽  
And Storage

scholarly journals Quantification of Doxycycline Hyclate in Different Pharmaceutical Samples by UV Assay

2016 ◽  
Vol 6 (4) ◽  
Author(s):  
Kazi Md Hasan ◽  
Md Anwarul Haque ◽  
Sm Alamgir Kobir ◽  
Mobarak Hossain
Keyword(s):  
Moisture Content ◽  
Biochemical Properties ◽  
General View ◽  
Uv Detector ◽  
Doxycycline Hyclate ◽  
Pharmaceutical Samples ◽  
Three Samples ◽  
Wide Range ◽  
Base Analysis

Objective: Doxycycline hyclate is a broad spectrum antibiotic with activity against a wide range of gram-positive and gram-negative bacteria and it is widely used as a pharmacological agent. A simple, selective, linear, precise and accurate ultraviolet detection (UV) method has been developed and applied for the determination of doxycycline hyclate in different pharmaceutical samples. Methods: Acid-base analysis and titrimetric method were utilized to determine the value of pH and moisture content of purchased pharmaceutical samples. A mixture of methanol and hydrochloric acid (0.01N Methanolic HCl) was used to determine the biochemical properties of doxycycline hyclate. UV detector set at 349 nm was used to monitor the effluent. The purified water was used as solvent. Results: In 1% aqueous solution of doxycycline, three samples (4th, 5th and 7th) showed lower pH values of 1.97, 1.98, and 1.99 respectively. Furthermore, the same samples indicated the additional moisture contents of 2.81%, 2.85% and 2.83% respectively while considering the acceptance level (1.4% to 2.8%). The method proved to be linear (R2=0.993), precise (RSD=0.79% for inter-day precision), accurate (Recovery=100.59%) and selective regarding possible impurities and excipients of the samples. The doxycycline content obtained in the sample analysis was within the range of 84.05% to 85.80%. Conclusion: The optimized and validated method may be successfully employed to perform routine quality control analyses. Investigation of the pH, moisture content and potency of doxycycline hyclate in different samples give a general view of local pharmacies trade and ensure that the method applied here was validated for this kind of analysis.

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