Results 21 to 30 of about 22,161 (255)

Quality control of test iodine in urine by spectrophotometry UV–Vis [PDF]

AIP Conference Proceedings, 2017
A quality control of iodine test in with UV-Vis spectrophotometry has been done. The purpose of this research is to find out whether the test results of samples conducted by Clinical Office of Research and Development Of GAKI (BP2GAKI) laboratory are still controlled, feasible and reliable, and still consistent over time, as indicated by the control ...
Thorikul Huda, Durotun Nafisah, Suryati Kumorowulan, Sri Lestari   +3 more
openaire   +1 more source

Validação de método e determinação espectrométrica dos flavonoides das folhas e do vinhoto da cana-de-açúcar e comparação com método CLAE-UV

Química Nova, 2011
This paper reports on a modification of the procedures originally described in the French Pharmacopoeia for the UV-visible spectrometric analysis of flavonoids, and proposes a validation of the method and its application in the determination of total ...
Carolina Hyppólito Alves Ferreira, Renata Colombo   +1 more
doaj   +1 more source

ADAPTAÇÃO DA METODOLOGIA DE ANÁLISE DE METEMOGLOBINA COMO BIOMARCADOR DE EFEITO DA EXPOSIÇÃO AO AGROTÓXICO DIFLUBENZURON

Química Nova, 2015
This work aimed to adapt the analysis of methemoglobin recommended by Evelyn - Malloy (visible spectrophotometry), in order to facilitate its application in the field, or to analysis in clinical laboratory, of existing sites of diflubenzuron application.
Cristiane Barata-Silva, Tatyane P. dos Santos, Adherlene V. Gouvêa, Ariane L. Larentis, Josino C. Moreira, Paula N. Sarcinelli   +5 more
doaj   +1 more source

Flavonoid Level Determination in Jamu Pegel Linu in Magelang Regency Using Uv-Visible Spectrophotometry

Journal of Tropical Pharmacy and Chemistry, 2023
Jamu is made from the toga plant, which is still used medicinally in Indonesia. Rutin, a type of flavonoid component, is frequently present in herbal medicine pegel linu. Rutin serves as an antioxidant and anti-inflammatory by neutralizing free radicals,
Selma Septi Pratiwi, Perdana Priya Haresmita, Missya Putri Kurnia Pradani, Arief Kusuma Wardani   +3 more
doaj   +1 more source

Correlation between UV-VIS spectra and the structure of Cu(II) complexes with hydrogenated dextran in alkaline solutions [PDF]

Hemijska Industrija, 2005
UV-VIS spectrophotometric investigations of Cu(II) complexes with hydroge-nated dextran showed that the complexation of Cu(II)-ions began at pH > 7. The formation of Cu(II) complexes with dextran monomer units was observed at pH 7-12.
Nikolić Goran S., Cakić Milorad D., Mitić Žarko J., Nikolić Ružica S., Ilić Ljubomir A.   +4 more
doaj   +1 more source

Karakterisasi Senyawa Minyak Atsiri Ekstrak Etil Asetat Bawang Putih (allium sativum l.)

Indonesian Journal of Pharmaceutical Education, 2021
Garlic (Allium sativum L.) is one of tuber vegetable crops that is widely grown in various countries in the word and is often used as food spices and medicines. The purpose of this study was to characterize the volatile oil compound ethyl acetate extract
Muhammad Taupik, A. Mu’thi Andy Suryadi, Faramita Hiola, Jumriani Rannu   +3 more
doaj   +1 more source

Validation of Methylene Blue Analysis Method in Wastewater Samples by Uv-Vis Spectrophotometry

Equilibrium Journal of Chemical Engineering, 2023
<p><strong>Abstract.</strong> Methylene blue (MB) is an extensively utilized cationic dye in the textile industry. MB is, however, a highly noxious substance that can have detrimental effects on both the environment and human health. MB can pollute waterways and cause the mortality of aquatic organisms in the environment.
Mentik Hulupi, Keryanti Keryanti, Karina Aulia Rahmawati, Widya Tresna Dewi, Fauzi Abdilah   +4 more
openaire   +2 more sources

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

Advanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim, Kyungjoo Jo, Kwanghyeon Park, Jun Hee Kim, Jong Hyeong Cho, Inhoo Choi, Sei Kwang Hahn   +6 more
wiley   +1 more source

Ultrafast Thermal Shock Synthesis of CuNiSnLa Medium‐Entropy Metallic Glass for Sustainable Nitrogen Fixation via Plasma‐Coupled Electrocatalysis

Advanced Functional Materials, EarlyView.
This work introduces an ultrafast thermal shock strategy to synthesize a CuNiSnLa medium‐entropy metallic glass (MEMG). The rapid heating and cooling process generates a robust, highly active catalyst for electrocatalytic nitrate reduction to ammonia (NRA).
Hongbo Chen, Peng‐Jun Deng, Yang Liu, Shenglong Huang, Shuo Sun, Haoxuan Li, Jiajia Lu, Panagiotis Tsiakaras   +7 more
wiley   +1 more source

Overcoming Photodynamic Therapy Resistance: GSH‐Responsive AIE Photosensitizer‐Hydroxycamptothecin Nanoliposomes for Extrahepatic Cholangiocarcinoma

Advanced Healthcare Materials, EarlyView.
A GSH‐responsive AIE nanoplatform (TSH NPs) with RGD‐mediated tumor targeting co‐delivers a photosensitizer (TPA) and HCPT for extrahepatic cholangiocarcinoma. The system synergistically enhances PDT and chemotherapy by suppressing HIF‐1α/VEGF‐driven hypoxic adaptation, effectively overcoming PDT resistance.
Yong Qu, Tao Peng, Yating Zhang, Juanmei Cao, Birong Wang, Chuxing Chai, Zhiyuan Gao, Yiting Xu, Yifan Jin, Yuqing Wang, Zhuoxia Li, Xu Liu, Tianqi Zhao, Yufan Chen, Weimin Lv, Di Lu, Changzheng Huang, Dan Ding, Jinxiang Zhang, Min Li   +19 more
wiley   +1 more source