iCheck Chroma
iCheck Chroma & Chroma 3 measure Vitamin A in oil
iCheck Chroma is a state-of-the-art portable photometer for measuring vitamin A concentration in edible oil. The iCheck is specifically developed and equipped with innovative technology to enable technically sophisticated measurement of absorption. iCheck Chroma displays vitamin A concentration in mg RE/kg.
iCheck iLab Content
iCheck Chroma 3 with metal cap
USB cable for data transfer to computer
Stand for reagent vials
Battery charger and 4 rechargeable batteries
Chroma 3 Standard
User Manual and software on USB stick
iCheck Test Kit Content
Syringe
Needle
Vial
Technical Data
Technical data
Analyte
Retinyl Palmitate
Sample Type
Refined edible oils: palm, sunflower, corn, peanut, rapeseed, coconut
Sample preparation
Not required
Analysis method
Photometric
Principle of reaction
Absorption
Sample volume per analysis
iCheck Chroma: 500 μL (0.5 mL), iCheck Chroma 3: 100 μL (0.1 mL)
Linear range
3 –30 mg retinol equivalents (RE)/ kg
Time per analysis
< 2 min
Optimal measuring temperature
20 –30°C
Variation
< 10%
Method comparison
Validated against reference method High-performance liquid chromatography (HPLC)
Light source
LED lamp
Staff qualification
1 day training
Use
Portable
Data transfer
Included (via USB cable)
Weight
0.45 kg
Dimensions
11 x 4 x 20 cm (W xHx L)
How it works
How it works
Scientific Publications
Scientific Publications
1. Renaud, C. Quantification of vitamin A in fortified rapeseed, groundnut and soya oils using a simple portable device: comparison to high performance liquid chromatography. International Journal for Vitamin and Nutrition Research, 2013.
2. Rohner, F. Quantification of vitamin A in palm oil using a fast and simple portable device: method validation and comparison to high-performance liquid chromatography International Journal for Vitamin and Nutrition Research, 2011.