Description
Specifications Table
Product Name – CALCEIN INDICATOR AR
Quantity/Pack Size – 1 g, 5 g
Form – Powder
Grade – AR (Analytical Reagent)
Application – Fluorescent calcium indicator, complexometric titrations
Product Overview
Calcein Indicator AR is a highly sensitive fluorescent dye widely used in analytical chemistry for detecting and quantifying calcium ions. This analytical reagent (AR) grade compound ensures exceptional purity, minimizing interference in assays and delivering precise results. Its unique fluorescence properties allow for accurate endpoint detection in complexometric titrations, particularly in EDTA titrations where calcium ions are involved. The powder form provides ease of handling and long-term stability when stored under recommended conditions. Calcein forms stable complexes with calcium, resulting in a distinct fluorescence shift that can be measured spectrophotometrically. This makes it indispensable in laboratories requiring reliable calcium ion analysis. The AR grade certification guarantees low impurity levels, ensuring consistent performance across various experimental conditions. Whether used in research or routine analysis, Calcein Indicator AR offers the reliability and sensitivity needed for demanding applications.
FAQs
1. What is the fluorescence wavelength range for Calcein Indicator AR?
Calcein exhibits excitation at approximately 494 nm and emission at 517 nm when bound to calcium ions.
2. Can this indicator be used for magnesium ion detection?
While primarily selective for calcium, Calcein can bind magnesium ions with lower affinity, requiring careful pH control for selective calcium detection.
3. What solvent is recommended for preparing Calcein solutions?
Aqueous solutions with pH adjustment (typically pH 7-9) or ethanol can be used, depending on the specific application requirements.
4. How does storage temperature affect Calcein Indicator AR stability?
Store at room temperature in a tightly sealed container, protected from light and moisture to maintain optimal stability and performance.
5. Is this product compatible with automated titration systems?
Yes, Calcein Indicator AR’s fluorescence properties make it suitable for integration with automated titration systems equipped with fluorescence detection.
