Retention Time (chromatography)
Morphometry and retention time as forcing functions to establishment and maintenance of aquatic macrophytes in a tropical reservoir
... Aquatic plants integrate temporal, spatial, chemical, physical and biological characteristics of an ecosystem, and their spreading and richness are influenced by changes in environmental conditions (Lacoul and Freedman, ...
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Biological and technical study of a partial-SHARON reactor at laboratory scale: effect of hydraulic retention time
... Abstract This study was on the technical and biological characteristics of a partial-SHARON submerged-filter bioreactor of 3 L. The main focus was the influence of the hydraulic retention time (HRT) on ...
12
Mesophilic Anaerobic Co-digestion of Cow dung, Chicken Droppings and Grass Clippings
... the oxygen and create an anaerobic process. It was then immersed in the water bath and kept under constant temperature. The liquid sample collected was analyzed using a spectrophotometer. The gas produced was measured ...
4
Hydraulic retention time on vinasse stabilisation with limestone in the acidogenic phase of anaerobic digestion
... Removing of organic matter by anaerobic digestion may generate biogas, increasing the pH and maintaining the mineral composition for use as a fertilizer at the same time (RIBAS et al., 2010). Biogas produced by ...
7
An improved HILIC HPLC-MS/MS method for the determination of β-ODAP and Its α isomer in lathyrus sativus
... the retention times varied according to the mobile phase ...a retention time of 39 min and α-ODAP showed a retention time of 45 min; at pH ...the retention times increased: 42 ...
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RP-HPLC METHOD FOR SIMULTANEOUS ESTIMATION OF SEXAGLIPTIN AND PIOGLITAZONE IN TABLETS
... A simple, selective, accurate high Performance Liquid Chromatographic (HPLC) method was developed and validated for the analysis of Sexagliptin and Pioglitazone. Chromatographic separation achieved isocratically on a C18 ...
4
Research on Phosphorus Removal in Artificial Wetlands by Plants and Their Photosynthesis
... (hydraulic retention time) and analysis of wetland plant photosynthesis and removal rate of phosphorus, simulates purification of phosphorus in urban runoff sewage by artificial wetland ...
9
Multi-Criteria Analysis of Different Technologies for the Bioenergy Recovery from OFMSW
... In recent years, mesophilic digesters are the most popular. The temperature of digesters depends mostly on the feedstock composition and the type of reactor, but it has been observed from literature that for maximum gas ...
6
Biomarcadores para a avaliação dos efeitos de clorpirifós em minhocas e em parâmetros funcionais do solo
... red retention time, and DNA damage estimated by the comet assay are indicative of effects of more than one detrimental factor, and because of their sensitivity they may be relevant to assessing the risk of ...
7
Artigo C. ambrosioides JFF Revised
... Chemical composition in hydrophilic compounds- sugars and organic acids- of wild Chenopodium ambrosioides.. Retention time (Rt), wavelengths of maximum absorption in the UV-vi[r] ...
30
Braz. J. Pharm. Sci. vol.50 número4
... The retention time of the drug was 3.25 min. The detector response was linear in the concentration of 0.01-5 μg/mL. The limit of detection and limit of quantiication were 17 and 52 ng/mL respectively. The ...
6
Kinetics of ruminal passage rate of particles of signal grass silage, maize and intercropped
... average time of particles retention in the raft (ATPR1); the average time in the rumen liquid phase (ATRLP2) and the average time of total ruminal retention (ATTRR) were adjusted for ...
12
art rosouza revisiting
... Abstract - This paper investigated the influence of organic loading on BOD and COD removal in primary facultative ponds. The study was based on six full-scale pond plants in which average removals of unfiltered ...
7
APPLICATION OF SUBMERGED MEMBRANE BIOREACTOR TECHNOLOGY FOR THE TREATMENT OF HIGH STRENGTH DAIRY WASTEWATER
... day and the COD removal efficiency was 97-98% under 3 hours of hydraulic retention time. Chen and Liu (2012) studied dairy wastewater treatment with coagulation and a MBR hybrid system. The MBR capacity was ...
10
Braz. J. Chem. Eng. vol.27 número1
... Abstract - This paper investigated the influence of organic loading on BOD and COD removal in primary facultative ponds. The study was based on six full-scale pond plants in which average removals of unfiltered ...
7
In-House Validation of HPLC-MSMS Methods for Detection and Quantification of Tetracyclines in Edible Tissues and Feathers of Broiler Chickens
... existence of interferences on the specific retention time of each analyte, 20 samples (certified to be free of residues from these antimicrobials) were analyzed and sourced separately[r] ...
10
art absantos enhancing
... hydraulic retention time (HRT) and the redox mediator anthraquinone-2,6- disulfonate (AQDS), on electron transfer and subsequent color removal from textile wastewater was assessed in mesophilic and ...
11
Revista Brasileira de Zootecnia
... the time from eating until defecation (Lewis et ...mean retention time or 2) gastric emptying rate. Mean retention time refers to the average time a substance spends in the ...
12
Quím. Nova vol.38 número7
... The presence of interferent compounds in the soil matrix, from the studied pesticides retention time segments, was determined through GC/MS-SIR analysis for both soil (uncultivated and[r] ...
7
Braz. J. Pharm. Sci. vol.51 número2
... to retention time 1 (7.82 min), retention time 3 ...min), retention time 4 (8.21 min), retention time 5 ...min), retention time 6 (9.91 min) and ...
6