Colorimetric Analysis of Ochratoxin A in Beverage Samples. [PDF]
Sensors (Basel), 2016 This manuscript describes the use of a portable and low cost fluorescence setup to quantify the concentration of ochratoxin A (OTA) in beverage samples using an in-house developed system and different color models. It is reported that OTA is naturally fluorescent, for that reason an ultraviolet light at 365 nm was used to excite the samples and a ...
Bueno D +4 more
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Colorimetric Approach to High-Throughput Mutation Analysis
BioTechniques, 2005 High-throughput genomic mutation screening for primary tumors has characteristically been expensive, labor-intensive, and inadequate to detect low levels of mutation in a background of wild-type signal. We present a new, combined PCR and colorimetric approach that is inexpensive, simple, and can detect the presence of 1% mutation in a background of ...
Nicole E. Benoit +8 more
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On the Colorimetric Analysis of Gold
NIPPON KAGAKU KAISHI, 1937 蛋白質の分解生成物なる「アミノ」酸(例へば鷄卵白の分解に依つて生ずるプロタルビン酸若しくはリサルビン酸の如し.)の微量をホルマリン及び苛性加里の混合溶液に溶解したる還元溶液は,鹽化金を還元せしむると共に,還元によりて生成せる金微粒子は直ちにアミノ酸の保護作用によつて安定なる赤紫色を呈する親水膠質液を生成することを實驗的に確め得たるを以て,著者は該還元液に既知及び未知の鹽化金を滴下して生ずる親水膠質液によりて,金の比色定量を試みたるに,其の操作は迅速簡便なること,感度は10×10-6g/mlの金まで比色定量し得ること,親水膠質液は常に均一なる赤紫色を呈すること,及び該親水膠質液は非常に安定にして變色したり或は凝折を起すことなきこと等の特徴を獲得したり.蓋し此の理は,一は該親水膠質液にはLambert ...
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A Smartphone-Based Disposable Hemoglobin Sensor Based on Colorimetric Analysis. [PDF]
Sensors (Basel), 2022 Meng Z +4 more
europepmc +1 more source
Smartphone-Based Colorimetric Analysis of Urine Test Strips for At-Home Prenatal Care. [PDF]
IEEE J Transl Eng Health Med, 2022 Flaucher M +9 more
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Interaction between glyphosate pesticide and amphiphilic peptides for colorimetric analysis. [PDF]
Nanoscale Adv, 2022 Gerbelli BB +7 more
europepmc +1 more source
Short and Long Time Bloodstains Age Determination by Colorimetric Analysis: A Pilot Study. [PDF]
Molecules, 2021 Marrone A +5 more
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Optimization of a silver-nanoprism conjugated with 3,3',5,5'-tetramethylbenzidine towards easy-to-make colorimetric analysis of acetaldehyde: a new platform towards rapid analysis of carcinogenic agents and environmental technology. [PDF]
RSC Adv, 2023 Farshchi F +4 more
europepmc +1 more source
Colorimetric Analysis and Determination of Histamine in Samples of Yellowfin Tuna (Thunnus albacares) Marketed in Sardinia (Italy) by a Combination of Rapid Screening Methods and LC-MS/MS. [PDF]
Foods, 2022 Pais GL +5 more
europepmc +1 more source