Results 1 to 10 of about 258,875 (317)

Comparative Analysis of Serum Magnesium Ion Levels Using Three Measurement Methods: Spectrophotometry, Atomic Absorption Spectrophotometry, and Inductively Coupled Plasma With Optical Emission Spectrophotometry

open access: yesInternational Journal of Analytical Chemistry
Magnesium is a cation that plays as an important cofactor in various enzymatic reactions. It is the fourth most abundant cation in the body after sodium, potassium, and calcium.
Raja Harahap, Maulidwina Bethasari
exaly   +3 more sources

Optimized Spectrophotometry Method for Starch Quantification

open access: yesAnalytica—A Journal of Analytical Chemistry and Chemical Analysis, 2022
Starch is a polysaccharide that is abundantly found in nature and is generally used as an energy source and energy storage in many biological and environmental processes.
Andrey Khlystov   +2 more
exaly   +2 more sources

Spectrophotometry

open access: yesA Practical Guide to Instrumental Analysis, 2004
light as a beam of light passes through sample solution. The basic principle is that each compound absorbs or transmits light over a certain range of wavelength.
Lorin M. Bachmann, W. G. Miller
openaire   +2 more sources

Spectrophotometric determination of methyldopa by oxidative coupling reactions using 2,4 -dinitrophenylhydrazine reagent

open access: yesTikrit Journal of Pure Science, 2022
A spectrophotometric method was developed for the determination of methyldopa. The method is based on oxidative coupling reactions with 4,2-dinitrophenylhydrazine as a reagent and in the presence of the oxidizing agent potassium periodate in the acidic ...
Dhuha N. Ali AL-ghanam   +1 more
doaj   +1 more source

Heteroligand copper(II), nickel(II), and cobalt(II) complexes with isonicotinic acid hydrazide and L-histidine

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2021
Complex formation in the ternary systems copper(II)/nickel(II)/cobalt(II) – isonicotinic acid hydrazide – L-histidine was studied by the methods of spectrophotometry and mathematical modeling in an aqueous solution with 0.1 mol dm–3 KNO3 as a background ...
N.V. Troshanin, T.I. Bychkova
doaj   +1 more source

Spectrophotometry for Xanthochromia [PDF]

open access: yesNew England Journal of Medicine, 2004
To the Editor: Xanthochromia, or a yellow appearance of the cerebrospinal fluid, is often used to confirm suspected subarachnoid hemorrhage.1,2 It is associated with the presence of bilirubin, a blood product that arises only in vivo by the enzymatic transformation of hemoglobin.
Petzold, A, Keir, G, Sharpe, LT
openaire   +3 more sources

Development of a spectrophotometric technique for the quantitative determination of ademol

open access: yesAktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2023
According to statistics, craniocerebral injuries are often the cause of disability among the population. The choice of medicines for traumatic brain injuries is one of the most difficult problems in the complex treatment of such patients.
S. I. Semenenko   +3 more
doaj   +1 more source

Assessment of Some Heavy Metal Concentrations in Drilling Mud samples in Az Zubair Oil Field, Basra, Iraq [PDF]

open access: yesEngineering and Technology Journal, 2018
Analysis of eight heavy metal concentrations (Cd, Cr, Cu, Fe, Mn,Ni, Pb and Zn) of 14 drilling mud samples collected from oil well at differentdepths which is located in AZ Zubair oil field-Basra was done in this study .The samples were measured using ...
Sahar Amin   +3 more
doaj   +1 more source

Impedance properties of biomass in support of practical mensuration in rain gardens

open access: yesFrontiers in Sensors, 2023
Impedance microbiology was explored to provide insights into how a sensor that can monitor the growth of bacteria in vegetated bioretention systems (rain gardens) may be designed for in situ, real-time use.
Farhad Jalilian   +3 more
doaj   +1 more source

Determination of Lisinopril in Pure and Tablet form by Using 2-Hydroxynaphthaldehyde as Derivatizing Reagent

open access: yesPakistan Journal of Analytical & Environmental Chemistry, 2021
An easy, sensitive and accurate spectrophotometric method has been developed for the determination of Lisinopril (LNP) in pure and tablet formulations based on derivatization reaction with 2-hydroxynaphthaldehyde (2HNA).
Zahid Ali Zounr   +8 more
doaj   +1 more source

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