Technical Data
SAMPLE

• Analyte: Vitamin A (retinol) as retinyl palmitate, retinyl acetate and other esters

• Sample: Food: premix, liquid milk, milk powder, flour, sugar, bouillon powder; biological fluids: breast milk, whole blood, serum

• Sample preparation: For solid samples: dilution and homogenization is distilled or bottled water

• Sample volume per analysis: 0.5 mL (500 μL)

• Concentration range: >0.05 ppm (mg/kg), samples above 3.0 ppm must be diluted in water

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DEVICE

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• Analytical method: Fluorimetric determination of retinol concentration using ultraviolate (UV) excitation

• Units displayed: μg RE/L, RE – retinol equivalents, μg – microgramms

• Linear range: 50–3000 μg RE/L

• Calibration: Factory set (standards included for control)

• Time per analysis: < 10 min

• Environment: 20–30 °C, no direct sunlight

• Accuracy at 95% confidence interval at 25°C: ±5-25% (depends on the sample type)

• 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: 1100 reagent vials; 100 syringes – 1.0 mL; 100 needles – 1.6mm x 25mm

• Chemical composition: n-Hexan and alcohols

• 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