scholarly journals Determination of Bispyribac Sodium 10% SC (Herbicide) Residue Level in Straw, Grain and Soil Using HPLC Method

2014 ◽  
Vol 17 ◽  
pp. 30-40 ◽  
Author(s):  
C. Tamilselvan ◽  
S. John Joseph ◽  
V. Angayarkanni
Keyword(s):  
Block Design ◽  
Sodium Content ◽  
Hplc Method ◽  
Rice Crop ◽  
Minimum Detectable Concentration ◽  
Randomized Block Design ◽  
Detectable Concentration ◽  
And Control ◽  
Control Water

A field trial was conducted to evaluate the residues of Bispyribac sodium 10 % SC on rice crop during Kharif season 2013 at Kandikai in Thiruvallur District, Tamilnadu, India. Randomized block design was followed withthree treatments forthree replicates. Bispyribac sodium 10 % SC 200 g a.i./ha, 500 g a.i./ha and control (water spray) was sprayed using hand operated Maax battery sprayer with a spray volume of 300 litres per hectare at 15 days after transplantation of rice crop (ADT 45). At harvest, samples of grain, straw and soil were collected replicate wise from each treatment along with the control. These samples were stored in icebox and transfer to the laboratory under cooled condition for analysis.All the residues samples were analyzed for Bispyribac sodium content by a validated HPLC method at the minimum detectable concentration of 0.01 ppm. The result revealed that no detectable level of Bispyribac sodium in straw, grain and soil at harvest. Thepost treatmentand pre-harvest intervalwas 60 days after transplantation.

scholarly journals Rapid and simultaneous quantification of rhamnose, mannitol, and lactulose in urine by HPLC for estimating intestinal permeability in pediatric practice

1996 ◽  
Vol 42 (1) ◽  
pp. 71-75 ◽  
Author(s):  
K Miki ◽  
R Butler ◽  
D Moore ◽  
G Davidson
Keyword(s):  
Intestinal Permeability ◽  
Hplc Method ◽  
Minimum Detectable Concentration ◽  
Healthy Children ◽  
Pediatric Practice ◽  
Modified Silica ◽  
Detectable Concentration ◽  
Detection Probe ◽  
Refractive Index Detection

Abstract Determination of intestinal permeability by measuring nonmetabolized sugars has been used to assess the integrity of intestinal mucosa. We have developed and validated a modified HPLC method for determining the concentration of L-rhamnose, mannitol, and lactulose in urine, using an amine-modified silica column and refractive index detection. Probe sugars are simultaneously resolved within 18 min. The calibration curve for each sugar is linear to 20 mmol/L. The minimum detectable concentration of lactulose is 0.05 mmol/L. Recovery of probe sugars is between 99.3% and 105.1%. Overall precision (CV) of estimation of probe sugars ranges from 4.2% to 6.5%. In 14 urine samples from healthy children who ingested the test solution containing 1 g of L-rhamnose, 1 g of mannitol, and 5 g of lactulose, the 5-h urinary excretion ratios of lactulose/rhamnose and lactulose/mannitol were 0.047 +/- 0.018 and 0.021 +/- 0.010 (mean +/- SD), respectively. This method presents a rapid, convenient, and practical technique for determining intestinal permeability in clinical pediatric practice.

scholarly journals Isocratic High-Performance Liquid Chromatographic Method with Ultraviolet Detection for Simultaneous Determination of Levels of Voriconazole and Itraconazole and Its Hydroxy Metabolite in Human Serum

2005 ◽  
Vol 49 (8) ◽  
pp. 3569-3571 ◽  
Author(s):  
GholamAli Khoschsorur ◽  
Franz Fruehwirth ◽  
Sieglinde Zelzer
Keyword(s):  
Human Serum ◽  
Simultaneous Determination ◽  
High Performance ◽  
High Performance Liquid Chromatographic ◽  
Specific Method ◽  
Minimum Detectable Concentration ◽  
Detectable Concentration ◽  
One Step ◽  
Liquid Chromatographic

ABSTRACT A simple, specific method is presented for simultaneous determination of voriconazole and itraconazole and its metabolite, hydroxyitraconazole, in human serum using one-step liquid-liquid extraction and high-performance liquid chromatography. Linearity tests ranged from 0.1 to 8.0 μg/ml; the minimum detectable concentration was 0.03 μg/ml.

scholarly journals Least limiting water range in Oxisols under different levels of machine traffic

2018 ◽  
Vol 8 (2) ◽  
pp. 337-346
Author(s):  
Karina De Vares Rossetti ◽  
José Frederico Centurion
Keyword(s):  
Bulk Density ◽  
Block Design ◽  
Corn Yield ◽  
Soil Penetration Resistance ◽  
Corn Crop ◽  
Randomized Block Design ◽  
Crop Development ◽  
Least Limiting Water Range ◽  
Different Levels

This work aimed, to evaluate the structural behavior of Oxisols based on the least limiting water range (LLWR) and establish relations with corn crop. The experiment was carried out in a randomized block design with five treatments and four replications. Soil samples collected at the layer of 0-0.20 m depth in a Haplustox (LVd) and an Eutrustox (LVef) were used. The compaction treatments consisted of T0= no additional compaction; T1 and T2= two and four passes with a 4 t tractor, respectively; T3 and T4 = two and four passes with a 10 t tractor, respectively. The range of LLWR variation in the LVd was the lowest one and varied from 0.01 to 0.04 m3 m-3, whereas in the LVef varied from 0.03 to 0.13 m3 m-3 for the critical soil penetration resistance (PRc) of 2 MPa. It was observed that critical bulk density (BDc) values were 1.76 and 1.40 Mg m-3 in the LVd and the LVef, respectively. The highest frequency of bulk density (BC ≥ BDc) occurred from the T1 to T4 (LVd) and from the T2 to T4, however, a reduction in corn yield was not observed. The determination of the LLWR was efficient and complementary for identifying more favorable or more impeditive conditions to compaction in the LVef for the corn crop development in relation to the LVd.

scholarly journals PERBEDAAN PENURUNAN TEKANAN DARAH PRA LANSIA PRE HIPERTENSI YANG DIBERI JUS TOMAT (Lycopersicum grandifilum)

2018 ◽  
Vol 10 (2) ◽  
pp. 152-158
Author(s):  
Hari Yani Fadillah
Keyword(s):  
Blood Pressure ◽  
Treatment Group ◽  
Block Design ◽  
Pressure Control ◽  
Tomato Juice ◽  
Control Group ◽  
Randomized Block Design ◽  
Before And After ◽  
Blood Pressure Treatment ◽  
And Control

The research aims to know the effect of tomato juice on blood pressure in pre-elderly pre hypertension at Posbindu Puskesmas Nusa Indah Bengkulu City.The design of research was a quasi experiment include pre test post test. This population was all patients posbindu aged 45-59 years. Sampling of this research randomized block design of one factorial were 6 samples divided into treatment and control group. The data which have been analyzed using univariate and bivariate. From this research were obtained the results such as the mean of sistole blood pressure before and after intervention in treatment group p = 0,273 and diastole p = 0,27. Mean systole blood pressure control group p = 0.060 and diastole p = 2.14. Distribution of tomato juice (Lycopersicum grandifilum) did not given affect the decrease in blood pressure of systole diastole before and after intervention in pre-elderly pre hypertension. Whereas the difference in mean systole of blood pressure treatment and control group p = 0.935 and diastolic of blood pressure p = 0.678. There ware not difference in mean of blood pressure in the tomato juice treatment group and control of Vitamin C. The result concluded there were not effect of tomato juice (Lycopersicum grandifilum) on systolic of blood pressure in pre-elderly pre hypertension at Posbindu Puskesmas Nusa Indah Bengkulu City.

scholarly journals Influence of Mother Rhizome Retrieval and Organic Treatment of the Retrieved Plants on Economic Yield of Ginger at Salyan, Nepal

2018 ◽  
Vol 35 (1) ◽  
pp. 203-209
Author(s):  
M. Basnet ◽  
H. Gurung
Keyword(s):  
Plant Height ◽  
Applied Field ◽  
Block Design ◽  
Tiller Number ◽  
Cost Ratio ◽  
Benefit Cost Ratio ◽  
Randomized Block Design ◽  
Retrieval Factor ◽  
Benefit Cost ◽  
And Control

An experiment was conducted at Salyan, Nepal to assess the mother rhizome retrieval and organic treatment of the same retrieved plant on economic yield of ginger during 2015/16.‘ Kapurkot Aduwa-1’, a superior Nepalese variety was used for this experiment. Two dates i.e. 1 September and 7 September were used as a time of retrieval factor and seven organic treatments i.e. Trichoderma, Jeevatu, Bordeaux paste, mixture of neem and timur dust, vermicompost, jholmal and control as second factor and these 14 treatment combinations were laid out in factorial randomized block design with three replications. The plant height, leaf number, tiller number was found to be significantly highest with vermicompost treatment on all days 5 days interval after harvesting of the mother rhizome whereas the lowest was observed at control. The mother rhizome yield and fresh rhizome was found to be significantly highest on vermicompost applied field with 1.7 t/ha and 22.8 mt/ha respectively and lowest fresh rhizome yield (15.5. t/ha) was found with control. The disease yield was significantly lowest (0 t/ha) and highest (0.2 t/ha) with the control. Benefit cost ratio was found to be significantly highest (1.74) and lowest at control (1.32).

Determination of Citrinin in Corn and Barley on Thin Layer Chromatographic Plates Impregnated with Glycolic Acid

1984 ◽  
Vol 67 (1) ◽  
pp. 194-196
Author(s):  
Alberto Gimeno
Keyword(s):  
Thin Layer ◽  
Glycolic Acid ◽  
Detection Method ◽  
Minimum Detectable Concentration ◽  
Extraction Solvent ◽  
Detectable Concentration ◽  
Tlc Plates ◽  
Limit Detection ◽  
Layer Chromatography

Abstract A method is described for the determination of citrinin in corn and barley. The mycotoxin is extracted with a mixture of acetonitrile-10% glycolic acid in water, defatted with isooctane, and transferred to chloroform according to published methods. The mycotoxin is separated by thin layer chromatography (TLC) on plates previously impregnated with 10% glycolic acid solution in ethanol; identity is confirmed by chemical tests. Citrinin is then quantitated by the limit detection method. Recoveries of citrinin from corn and barley samples spiked at levels of 50, 80, 150, 300, 500, and 1000 μg/kg were in the range 91-98%. The minimum detectable concentration is 15-20 μg/ kg. Recoveries obtained with and without glycolic acid in the extraction solvent were compared. Sensitivities on TLC plates (limits of detection, μg/spot) impregnated with glycolic acid were compared with those on plates impregnated with oxalic acid.

scholarly journals PENGARUH PENAMBAHAN LUMPUR AKTIF PADA BIOFILTER ANOKSIK-OKSIK DALAM MENURUNKAN KADAR AMONIA AIR LIMBAH RUMAH SAKIT

2019 ◽  
Vol 13 (1) ◽  
pp. 49
Author(s):  
Wayan Trisna Dewi ◽  
I Wayan Budiarsa Suyasa ◽  
I Nyoman Rai
Keyword(s):  
Activated Sludge ◽  
Block Design ◽  
Quality Standard ◽  
Suspended Solid ◽  
Hospital Wastewater ◽  
Randomized Block Design ◽  
Increasing Demand ◽  
Two Stages ◽  
Demand For Health ◽  
And Control

Development of the population and the increasing demand for health services has led to the increase in the number of hospitals, both government hospital and privet hospitals. The presence of ammonia as a result of protein decomposition can be toxic in the waters. The application of anoxic-oxic biofilter system is an attempt to be able to reduce ammonia levels in hospital wastewater. In the process of anoxic-oxic biofilter, contact occurs between the gravel media and microorganism to form biofilms which can accelerate the degradation of organic matter and the nitrification process. This study aims to obtain the best activated sludge source in reducing ammonia levels of wastewater applied to the anoxic-oxic biofilter system applied. This research was contucted in two stages in which the first stage of active mud nursery was carried out from three sources, namely WWTP Wangaya Hospital Denpasar, WWTP of PTN Hospital Udayana University and WWTP of Bangli Hospital for six days. At this stage a Mixed Liquor Volatile Suspended Solid (MLVSS) value is measured which shows the growth rate of biomass in activated sludge. The second stage is applivation of avtivated sludge and control to the anoxic-oxic biofilter system to reduce ammonia levels in hospital wastewater for five days of processing. This study use a randomized block design with four treatments and three replication. The results showed that the best activated sludge was obtained through nursery from WWTP of Wangaya Denpasar Hospital which was shown by the highest biomass growth (MLVSS Value) of 2433.3 mg/L and the highest reduction in ammonia reached a final level of 0.53 mg/L. The levels of effectiveness of the process of decreasing ammonia levels by 94.70% and has been able to pass the specified quality standard effectiveness percentage (90%) for five days of processing. The value of this effectiveness is the highest compared to the controls and other activated sludge treatment.

scholarly journals Cowpea yield on soils with residues of NPK and natural phosphate fertilizers in succession the area of degraded pasture

Revista CERES ◽  
2016 ◽  
Vol 63 (4) ◽  
pp. 553-567 ◽  
Author(s):  
Pedro Emerson Gazel Teixeira ◽  
Antonio Rodrigues Fernandes ◽  
Jessivaldo Rodrigues Galvão ◽  
Wendel Valter da Silveira Pereira ◽  
Sandro Rogério Almeida Casanova ◽  
...  
Keyword(s):  
Phosphorus Content ◽  
Block Design ◽  
Residual Effect ◽  
Dry Mass ◽  
Phosphate Fertilizers ◽  
Natural Phosphate ◽  
Randomized Block Design ◽  
Degraded Pasture ◽  
And Control ◽  
Degraded Pastures

ABSTRACT The cultivation of cowpea [Vigna unguiculata (L) Walp] can be an important alternative in succession to maize in areas of degraded pastures due to the use of residue from fertilizers . With this, we aimed to evaluate the productivity of cowpea as a successor culture to undergo corn doses of reactive natural phosphate Arad and combinations with NPK. The experimental design was a randomized block design in a split plot with four replications. The fertilizer was applied in previous cultivation (crop) using four phosphate doses in the form of Arad natural phosphate: 50, 100, 200 and 300 kg ha-1 of P2O5 and the sub-plots in combination with NPK, NK, NK + liming, and control (no liming and fertilizer). The cowpea yield components were evaluated in this work. The residues of P2O5 from the natural phosphate increased the phosphorus content in the plant and influenced the number of grains per pod. The residual effect of NK+ liming and only NK showed better results for the variables grain yield, number of pods per plant, number of seeds per pod and dry mass of aerial part. The residual effect of NPK showed better results for the mass of 100 grains.

Nutrient requirement for confectionery groundnut (Arachis hypogaea L.) under irrigated condition

2016 ◽  
Vol 35 (1) ◽  
Author(s):  
P. M. Vaghasia ◽  
V. B. Bhalu ◽  
V. H. Kachhadiya
Keyword(s):  
Field Experiment ◽  
Arachis Hypogaea ◽  
Control Experiment ◽  
Clay Soil ◽  
Block Design ◽  
Nutrient Requirement ◽  
Nitrogen Levels ◽  
Pod Yield ◽  
Randomized Block Design ◽  
And Control

A field experiment was carried out during summer seasons of 2011-12, 2012-13 and 2013-14 at the Main Oilseeds Research Satiation, Junagadh Agriculture University, Junagadh to determine the optimum nutrient requirement for confectionery on medium clay soil under irrigated condition. The experiment consisted of nine treatments <italic>viz</italic>., two nitrogen levels, two potassium levels, two levels of sulphur and control. Experiment was laid out in randomized block design with four replications. N @ 50 kg/ha, K @ 50 kg/ha and S @ 40 kg/ha (T<sub>8</sub>) with recommended dose of phosphorus (50 kg/ha) recorded the higher pod yield of 2770 kg/ha and haulm yield of 4557 kg/ha with net realization ( j 85112/ha) and B:C ratio (3.34) which was closely followed by N @ 50 kg/ha, K @ 25 kg/ha and S @ 40 kg/ha (T<sub>6</sub>).

scholarly journals Health quality and germination of Butia capitata seeds treated with bactericide and fungicide

2016 ◽  
Vol 42 (4) ◽  
pp. 303-307
Author(s):  
Vander Rocha Lacerda ◽  
◽  
Diemesson San Tiago Mendes ◽  
Fernando da Silva Rocha ◽  
Maria de Fátima Gonçalves Fernandes ◽  
...  
Keyword(s):  
Block Design ◽  
Transparent Plastic ◽  
Randomized Block Design ◽  
Randomized Design ◽  
Seed Health ◽  
High Incidence ◽  
Health Quality ◽  
Completely Randomized Design ◽  
Test Treatments ◽  
And Control

ABSTRACT Propagation of “coquinho-azedo” (Butia capitata) is limited due to dormancy and high incidence of fungi in its seeds. The aim of this study was to evaluate the effect of treating “coquinho-azedo” seeds with different concentrations of bactericide and/or fungicide on the incidence of fungi and on the germination of seeds. Thus, B. capitata seeds were immersed in four doses of the bactericide kasugamycin (0, 1.5, 3.0 and 4.5 mL/L) and/or in four concentrations of the fungicide carbendazim+ thiram (0, 2.92, 5.84 e 8.75 mL/Kg), totaling 16 treatments. After the treatments, the operculum was removed from the seeds, which were placed on trays containing autoclaved sand, covered with transparent plastic film and kept in the nursery. In the germination test, treatments were distributed in randomized block design, factorial arrangement of 4x4 (bactericidal doses x fungicide doses), with four replicates of 50 seeds per plot. For the test of seed health quality, the Blotter test was employed in completely randomized design, using 20 replicates and 10 seeds. Health quality and germination were evaluated at 15 and 40 days after the treatment of seeds, respectively. There was no interaction between the bactericide and the fungicide on germination and control of fungi associated with seeds. However, there was an effect of fungicide concentrations on the evaluated parameters. We observed a negative correlation between the concentrations of the fungicide carbendazim + thiram and fungal incidence, and a positive correlation between the fungicide concentrations and seed germination. Therefore, fungicide treatment reduces the fungal incidence and provides better germination of B. capitata seeds.

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