scholarly journals Nutrient Calcium (Ca2+) Analysis of Oil Palm (Elaeis guineensis) Leaves By Spectrophotometry

2021 ◽  
Vol 7 (1) ◽  
pp. 248-252
Author(s):  
Rudi Munzirwan Siregar
Keyword(s):  
Spectrophotometric Method ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Calcium Content ◽  
Critical Value ◽  
Research Center ◽  
Uv Visible

The determination of the nutrient calcium in oil palm leaves has been carried out at the Medan oil palm research center. Determination of the nutrient calcium in oil palm leaves was carried out using the UV-visible spectrophotometric method. The analysis showed that the average calcium content of oil palm leaves was 0.16%. From these results indicate that the calcium content in oil palm leaves is still enaough than the value of critical value palm leaves which the value between 0.17 - 0.19%.

scholarly journals DEVELOPMENT AND VALIDATION OF UV-SPECTROPHOTOMETRIC METHOD FOR ESTIMATION OF HYDROQUINONE IN BULK, MARKETED CREAM AND PREAPARED NLC FORMULATION

2017 ◽  
Vol 9 (5) ◽  
pp. 102
Author(s):  
Sukhjinder Kaur ◽  
Taranjit Kaur ◽  
Gurdeep Kaur ◽  
Shivani Verma
Keyword(s):  
Spectrophotometric Method ◽  
Limit Of Detection ◽  
Pharmaceutical Formulations ◽  
Pure Form ◽  
Nanostructured Lipid Carrier ◽  
Limit Of Quantification ◽  
Double Beam ◽  
Uv Visible ◽  
Development And Validation

Objective: The aim of the present work was to develop a simple, rapid, accurate and economical UV-visible spectrophotometric method for the determination of hydroquinone (HQ) in its pure form, marketed formulation as well as in the prepared nanostructured lipid carrier (NLC) systems and to validate the developed method.Methods: HQ was estimated at UV maxima of 289.6 nm in pH 5.5 phosphate buffer using UV-Visible double beam spectrophotometer. Following the guidelines of the International Conference on Harmonization (ICH), the method was validated for various analytical parameters like linearity, precision, and accuracy robustness, ruggedness, limit of detection, quantification limit, and formulation analysis.Results: The obtained results of the analysis were validated statistically. Recovery studies were performed to confirm the accuracy of the proposed method. In the developed method, linearity over the concentration range of 5-40 μg/ml of HQ was observed with the correlation coefficient of 0.998 and found in good agreement with Beer Lambert’s law. The precision (intra-day and inter-day) of the method was found within official RCD limits (RSD<2%).Conclusion: The sensitivity of the method was assessed by determining the limit of detection and limit of quantification. It could be concluded from the results obtained that the purposed method for estimation of HQ in pure form, in the marketed ointment and in the prepared NLC-formulation was simple, rapid, accurate, precise and economical. It can be used successfully in the quality control of pharmaceutical formulations and for the routine laboratory analysis.

scholarly journals Hyperspectral imaging for nondestructive determination of internal qualities for oil palm (Elaeis guineensis Jacq. var. tenera)

2009 ◽  
Vol 18 (3) ◽  
pp. 130-141 ◽  
Author(s):  
Phorntipha Junkwon ◽  
Tomohiro Takigawa ◽  
Hiroshi Okamoto ◽  
Hideo Hasegawa ◽  
Masayuki Koike ◽  
...  
Keyword(s):  
Hyperspectral Imaging ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Nondestructive Determination ◽  
Elaeis Guineensis Jacq

scholarly journals DEVELOPMENT AND VALIDATION OF UV-VISIBLE SPECTROPHOTOMETRIC METHOD FOR DETERMINATION OF DULOXETINE

2019 ◽  
pp. 27-31
Author(s):  
LIPSA SAMAL ◽  
AMARESH PRUSTY
Keyword(s):  
Spectrophotometric Method ◽  
Spectroscopic Method ◽  
Solvent System ◽  
Spectrophotometric Analysis ◽  
Thiophene Derivative ◽  
Experimental Conditions ◽  
Relative Standard ◽  
Uv Visible ◽  
Development And Validation

Objective: The aim of the present work was to develop and validate a simple UV spectroscopic method for the determination of duloxetine, which is a thiophene derivative and a selective neurotransmitter reuptake inhibitor for serotonin, norepinephrine, and to lesser degree dopamine. Methods: The UV Spectrophotometric analysis was performed using Shimadzu UV-1800 and Shimadzu UV-1700 spectrophotometer by using solvent system acetonitrile and water in the ratio of 8:2. Detection was performed at a wavelength of 290 nm. Method validation was carried out according to ICH Q2R1 guidelines by taking the parameters linearity, accuracy, precision, ruggedness, and robustness, LOD and LOQ. Results: The UV Spectrophotometric method was found linear in the range of 10-50 μg/ml. The method was rugged and robust with % relative standard deviation less than 2. The extraction recoveries were found to be higher than 99% in all experimental conditions. Conclusion: Based upon the performance characteristics, the proposed method was found accurate, precise and rapid and suitable for the determination of Duloxetine for routine analysis.

Development of Leaves in Oil Palm (Elaeis Guineensis) and Determination of Leaf Opening Rate

1994 ◽  
Vol 30 (4) ◽  
pp. 467-472 ◽  
Author(s):  
C. J. Breure
Keyword(s):  
Oil Palm ◽  
Cultural Practices ◽  
Elaeis Guineensis ◽  
Rapid Expansion ◽  
Leaf Production ◽  
La Palma ◽  
Slow Expansion ◽  
Expansion Stage ◽  
The Mean

SUMMARYOil palm rachis length was determined on primordia dissected from palms planted at four densities. It started to increase rapidly in leaf–10, that is, about ten leaves younger than the spear leaf in all density treatments. The mean number of leaf primordia at the three higher palm densities was 47.7 compared with 51.5 at the lowest density of 56 palms ha-1. Some of the palms planted at the highest density were thinned to identify the stage at which the amount of light affected the rate of leaf opening. A sudden increment of light accelerated leaf production at both the rapid expansion stage and the preceding slow expansion stage. The greatest acceleration of leaf production began 24 months after thinning, probably because of the effect of the extra light on the rate of leaf initiation. The response of leaf production to thinning may apply to other related cultural practices.Desarrollo de hojas en la palma aceitera (Elaeis guineensis) y determination de la tasa de apertura de las hojas

scholarly journals Pengaruh Jarak Tanam Yang Berbeda Terhadap Pertumbuhan Dan Produksi Kelapa Sawit (Elaeis guineensis Jacq)

2020 ◽  
Vol 5 (1) ◽  
pp. 22
Author(s):  
Hayata Hayata ◽  
Ida Nursanti ◽  
Pandu Kriswibowo
Keyword(s):  
Oil Palm ◽  
Sampling Method ◽  
Elaeis Guineensis ◽  
T Test ◽  
Fresh Fruit ◽  
Plant Spacing ◽  
Fresh Fruit Bunch ◽  
Fresh Fruit Bunches ◽  
Planting Distance

Plant spacing is a factor influencing the growth of oil palm plants. Plant spacing is done to get an area for plant growth, to avoid a sun and nutrients competition for each oil palm plant, and to make it easier maintenance. This study aimed to see   the growth and production of oil palm at different planting distances. This research was carried out at the Oil Palm smallholder Plantation located in Suko Awinjaya Village, Sekernan District, Muaro Jambi Regeny, 64 kilometers (representing 8×8 m spacing) and 69 kilometers (representing 9×9 m spacing). This research was conducted in March-April 2019. The design of the experiment was carried out as an unformatted trial and the location was porpusively chosen as  there were a uniform plants in that location. Sampling determination of the locations was based on spacing differences e.g.  Planting distance 8 × 8 m (P1), Planting distance 9 × 9 m (P2). The Systemic Sampling method was used in this study. The parameters observed were plant height, stem circumference, weight of fresh fruit bunches (FFB), productivity, light intensity, air temperature, air humidity (%). A measured agronomic each observed parameter was analyzed by Independent t test (significant level of 5%). The result showed that the oil palm plantations with 8x8 m distance planted give a higher growth  and a smaller stem circumference than the 9x9m. While a higher both of Fresh Fruit Bunch Weight and productivity were obtained at a 9x9 m spacing than those at 8x8 m planted distance. Keywords: Spacing, Productivity, Oil Palm AbstrakJarak tanam merupakan faktor yang mempengaruhi pertumbuhan tanaman kelapa sawit. Pengaturan jarak tanam adalah untuk mendapatkan ruang tumbuh bagi pertumbuhan tanaman guna menghindari kompetisi memperebutkan unsur hara dan matahari dari setiap tanaman kelapa sawit, serta mempermudah dalam pemeliharaan. Penelitian ini bertujuan untuk melihat pertumbuhan dan produksi kelapa sawit pada jarak tanam yang berbeda. Penelitian ini dilaksanakan di Perkebunan Kelapa Sawit Rakyat yang terletak di Desa Suko Awinjaya, Kecamatan Sekernan Kabupaten Muaro Jambi kilometer 64 (mewakili jarak tanam 8×8 m) dan kilometer 69 (mewakili jarak tanamn 9×9 m). Penelitian ini pada bulan Maret – April 2019. Rancangan Percobaan di lakukan dengan tidak terformat, dan lokasi dipilih secara sengaja karena pada lokasi tersebut terdapat tanaman yang diteliti dan seragam. Penentuan lokasi pengambilan sempel berdasarkan perbedaan jarak tanam yaitu: Jarak tanam 8×8 m (P1), Jarak tanam 9×9 m (P2) Pengambilan sampel pada penelitian ini menggunakan metode Sistemik Sampling. Parameter yang diamati adalah Tinggi tanaman, Lingkar Batang, Berat Tandan Buah Segar (TBS), Produktivitas, Intesitas Cahaya, Suhu Udara, Kelembaban Udara (%), Tindakan Agronomi. Setiap parameter yang diamati dilakukan analisis  Independent t test pada taraf α 5 %. Tanaman Kelapa sawit yang ditanam pada jarak 8x8 m memberikan hasil pertumbuhan yang lebih tinggi dan lingkaran yang lebih kecil dibandingkan dengan jarak tanam 9x9 m. Berat Tandan Buah Segar dan produktivitas yang lebih tinggi didapatkan pada jarak tanam 9x9 m dibandingkan dengan yang ditanam pada jarak 8x8 mKata kunci : Jarak Tanam, Produktivitas, Kelapa sawt

Bioanalytical method development and validation of UV spectrophotometric method for estimation of Bumetanide spiked in human urine

2021 ◽  
Vol 11 (2) ◽  
pp. 241-248
Author(s):  
Bhavya sri Khagga ◽  
Kavya.Parelli
Keyword(s):  
Spectrophotometric Method ◽  
Human Urine ◽  
Method Development ◽  
Uv Detector ◽  
Bioanalytical Method ◽  
Method Development And Validation ◽  
Uv Visible ◽  
Development And Validation ◽  
Spiked Human Urine

The main purpose of this study was to develop a simple precise, rapid and accurate UV-visible spectrophotometric method for determination of Bumetanide in spiked human urine by extracting the Bumetanide from spiked human urine using ethyl acetate after extraction it was scanned between 200-400nm by using UV detector and its absorbance maxima was found to be 222nm.The calibration curve was linear in the range of 1-17 µg/ml. .the recovery and assay studies of bumetanide were within 93-94.85% indicating that the proposed method can be estimation of bumetanide.

Analytical Method Development and Validation of Prucalopride Succinate in Bulk and Formulation by UV-Visible Spectrophotometry

2021 ◽  
pp. 4189-4191
Author(s):  
A.C. Bhosale ◽  
V.C. Bhagat ◽  
V. V Kunjir ◽  
D.P. Kardile ◽  
R.V. Shete
Keyword(s):  
Quantitative Determination ◽  
Spectrophotometric Method ◽  
Analytical Method ◽  
Method Development ◽  
Routine Analysis ◽  
Ich Guidelines ◽  
Method Development And Validation ◽  
Uv Visible ◽  
Development And Validation

Purpose: Analytical method development and validation for the quantitative determination of Prucalopride succinate in bulk and tablet formulation which plays major role in the development and manufacture of pharmaceuticals. Methods: In the present work a simple, rapid and reproducible UV-Visible Spectrophotometric method was developed and validated according to ICH guidelines. Results and Conclusions: The parameters linearity, specificity, precision, accuracy, and robustness were studied. The wavelength 243nm was selected for the estimation of drug using methanol as a solvent. The drug obeys Beer-lambert’s law over the concentration range 2-10μg/ml. The accuracy of the method was assessed by recovery studies and was found between 97.2- 98.3 %. The method was successfully applied for routine analysis of Prucalopride succinate in bulk and formulation.

scholarly journals Development and Validation of UV-Visible Spectrophotometric Method for the Determination of 5-Hydroxymethyl Furfural Content in Canned Malt Drinks and Fruit Juices in Ghana

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Joseph K. Adu ◽  
Cedric D. K. Amengor ◽  
Emmanuel Orman ◽  
Nurudeen Mohammed Ibrahim ◽  
Maryjane O. Ifunanya ◽  
...  
Keyword(s):  
Ultraviolet Radiation ◽  
Spectrophotometric Method ◽  
Manufacturing Process ◽  
Fruit Juice ◽  
Solvent System ◽  
Maximum Absorption ◽  
Hydroxymethyl Furfural ◽  
Uv Visible ◽  
Development And Validation

A simple, rapid, accurate, and less expensive spectrophotometric method has been developed for the quantitation of 5-hydroxymethyl furfural (5-HMF) levels in canned malt drinks and fruit juice drinks sampled in the Kumasi Metropolis, Ghana. The quantitation is based on the selective maximum absorption of ultraviolet radiation by 5-HMF at the wavelength (λmax) of 284 nm using acetonitrile : water (50 : 50 v/v) as the solvent system. The method was established to be specific, precise, and accurate over a concentration range of 0.001 mg/ml–0.02 mg/ml. 5-HMF levels in fruit juice samples (A1–A10) were between 0.132 mg/ml and 0.438 mg/ml, and these levels were shown to be comparable (t = 2.200;p=0.0553) to the contents in the canned malt samples (M1–M10) which were between 0.3140 mg/ml and 0.7170 mg/ml. The study failed to show any dependence of 5-HMF levels on the composition of the product as well as the manufacturing process adopted. The length of storage did also not significantly affect the 5-HMF levels in the products.

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