نتایج جستجو برای: extraction spectrophotometry

تعداد نتایج: 174059  

Journal: :Indonesian Journal of Chemical Science and Technology 2023

Bajakah is one of the plants found in forest around Muara Badak. root contains flavonoids which have potential as natural ingredients that medicinal properties. Currently, there are two types bajakah on market, namely tampala and kalalawit. This study aims to determine content total flavonoid extract from root. The research procedure was initiated by process extracting roots using reflux method...

2017
Özge Kömürcü Karuserci Mete Gürol Uğur Özcan Balat Seyhun Sucu

OBJECTIVE The aim of this study was to diagnose ectopic pregnancy in the early period by measuring cell-free fetal DNA (cffDNA) levels in maternal blood using spectrophotometry. MATERIALS AND METHODS Thirty patients with ectopic pregnancy and 30 patients with first trimester intrauterine pregnancy were enrolled in this prospective controlled study. cffDNA levels in maternal serum were measure...

Journal: :Biotropika: Journal of Tropical Biology 2023

Our previous study revealed that modified MAGSi (magnetic-silica nanopartivel beads) had various sizes and shapes affected the DNA extraction process. In this study, we combined our with several kinds of lysis buffer for to analyze result. Human saliva was extracted using three MAGSi. Each them made differently. We used ATL buffer, Triton Buffer, without cell lysis. The concentration purity wer...

2014
Carina Heydt Jana Fassunke Helen Künstlinger Michaela Angelika Ihle Katharina König Lukas Carl Heukamp Hans-Ulrich Schildhaus Margarete Odenthal Reinhard Büttner Sabine Merkelbach-Bruse

Over the last years, massively parallel sequencing has rapidly evolved and has now transitioned into molecular pathology routine laboratories. It is an attractive platform for analysing multiple genes at the same time with very little input material. Therefore, the need for high quality DNA obtained from automated DNA extraction systems has increased, especially to those laboratories which are ...

2004
V. J. Barthet

The FOSFA (Federation of Oils, Seeds and Fats Associations Limited) extraction method (harmonized as AOCS Am 2-93 or ISO 659) is considered to be the reference method to measure the oil content of oilseeds. The method is based on the extraction of neutral lipids with hexane or petroleum ether, and the extracted components are estimated gravimetrically and defined as crude fat or oil content. Th...

Journal: :Analytical chemistry 1976
T J Forehand A E Dupuy H Tai

The analysis of arsenic in soil requires a procedure which is capable of releasing microgram quantities from a complex matrix and eliminating interferences for a specific determination. Kingsley and Schaffert ( I ) have described microdetermination of arsenic in biological material, using concentrated hydrochloric acid for digesting the sample. Beard and Lyerly ( 2 ) have applied the selective ...

2013
Ricardo Moreno Pamela O Delgado Patrícia G Coelho Sarah R Marsicano Viviane AV Boas Ligia A Azzalis Virgínia BC Junqueira Katya C Rocha Luiz Carlos de Abreu Vitor E Valenti Jefferson Drezzet Edimar Cristiano Pereira Fernando LA Fonseca

BACKGROUND Several studies seek biological markers that give diagnostic and degree of tumor development. The aim of this study was to validate the determination of plasma DNA using nanotechnology (Nanovue™-NV) in samples of 80 patients with prostate cancer. METHODS Blood samples of 80 patients of the Urology Ambulatory of Faculdade de Medicina do ABC with prostate cancer confirmed by anatomic...

Journal: :The American journal of physiology 1998
Jean Xavier Mazoit Régine Le Guen Anne Decaux Pierre Albaladejo Kamran Samii

Colored microspheres have become popular compared with radioactive microspheres because they do not use radioactivity. However, they suffer from a much greater variability in their determination. We have developed a new method for assaying the dye using high-performance liquid chromatography (HPLC) with internal standard. This technique permits accurate determination of ≤400 spheres in rat bloo...

Journal: :Astronomy and Astrophysics Supplement Series 1997

Journal: :Review of Scientific Instruments 1955

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