iCheck Chroma 3 measures vitamin A in oil
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

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• 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)

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TEST KITS

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• 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