Chroma

iCheck Chroma 3

iCheck Chroma 3 measures vitamin A in oil

iCheck Chroma 3™ 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™ 3 displays vitamin A concentration in mg RE/kg and IU/g.

LOOK INSIDE
LOOK INSIDE

iCheck iLab Content

iCheck Chroma 3 with metal cap

1x

USB cable for data transfer to computer

1x

Stand for reagent vials

1x

Battery charger and 4 rechargeable batteries

1x

Chroma 3 Standard

1x

User Manual and software on USB stick

1x

iCheck Test Kit Content

Syringe

100x

Needle

100x

Vial

100x
Technical Data

iCheck Chroma 3 Technical Data

SAMPLE

Analyte
Vitamin A (retinol) as retinyl palmitate
Sample
Refined edible oils: palm, soy, cottonseed, sunflower, corn, peanut, rapeseed, coconut, rice bran
Sample preparation
If the oil is solid, warm it up to a maximum of 50°C to make it liquid
Sample volume per analysis
0.1 mL (100μL)
Concentration range
>3.0 ppm (mg/kg), samples above 30.0 ppm must be diluted in refined unfortified oil

DEVICE

Analytical method
Photometric determination of retinol concentration using colorimetric Carr-Price reaction combined with compensation for matrix effect
Units displayed
mg RE/kg and IU/g; RE – retinol equivalents, IU – international units
Linear range
3.00 – 30.00 mg RE/kg (10.00 – 100.00 IU/g)
Calibration
Factory set (standards included for control)
Time per analysis
< 2 min
Enviroment
20 –30°C, no direct sunlight
Accuracy at 95% confidence interval at 25°C
<±30%
Method comparison
High-performance liquid chromatography (HPLC)
User training
1 day training
Use
Laboratory and field
Data output
Sample #, Batch #, Result, Date, Time (in transferred data)
Connectivity and data
Results are stored in the device and transferred to a PC via USB
Power source
NiMH rechargeable batteries included; AA 1.2 or 1.5V
Warranty
2 years
Device weight
0.45 kg
Device dimensions
11 x 4 x 20 cm (W x H x L)

TEST KIT

Content
100 reagent vials; 100 syringes – 1.0 mL; 100 needles – 0.8mm x 16mm.
Chemical composition
Chloroform and antimony trichloride
Volume per reagent vial
2.0 mL
Shelf life
12 months at 20 – 30°C, no direct sunlight, upright
Dimension of test kit
26 x 14.5 x 16.5 cm
Disposal instructions
Hazardous waste
Optional equipment
50 mL falcons, reference samples
How it works

How it works

Reference Methods

iCheck Chroma is comparable
to reference methods

LEARN MORE
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.

Material Data Safety Sheets

Material Data Safety Sheets

Looking for the User Manual?
Need Help with Sample Preparation?
Find it all on iCheck Academy

iCheck Academy