iCheck Chroma 3 and Test Kit For Vitamin A in Edible Oil Analyzer

iCheck Chroma 3 Measures Vitamin A in Edible 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.


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

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

Environment: 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)

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 vitamin A in edible oil works

LOOK INSIDE iCheck Chroma 3 Analyzer


LOOK INSIDE iCheck Chroma 3 Test Kit