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iCheck Iodine scores hightest in recent assessment of test kits for salt iodine analysis



Researchers confirm the good performance of iCheck Fluoro device (Jan 2015)

Researchers from UNICEF,  the Institut de Recherche et Dévelopement (IRD) and the Global Alliance for Improved Nutrition (GAIN) have compared the performance of Bioanalyt's iCheck Fluoro device to the reference method HPLC. The portable fluorometer (iCheck FLUORO) and its test kit vials precisely determined the vitamin A contents in fortified flours, sugar, and milks. The intra-assay precision for flour was 9-18 % for iCheck  and 8-30 % for HPLC. The agreement of iCheck and HPLC based on Bland-Altman-Plot showed that 95% of all values differ not more than 3 ppm. Read more here:


New publication: Comparison of iCheck FLUORO for breast milk vitamin A (June 2014)

The researchers Dr. Reina Engle-Stone and her team of the University of California, Davis compared vitamin A content of breast milk measured by the standard technique (high-performance liquid chromatography, HPLC) with those by Bioanalyt's iCheck FLUORO test kit. iCheck FLUORO can measure vitamin A in breast milk on the spot.

154 breast milk samples collected during a representative survey in Yaoundé and Douala, Cameroon were measured.  The vitamin A content of the breast milk from the two methods correlated highly with R² = 0.72 . According to the authors iCheck FLUORO is a promising tool for monitoring forti fi cation programs and it is recommended to assess breast milk vitamin A with one method being used consistently.  The data have been published in the European Journal of Clinical Nutrition. Download the article as PDF here.



New publication: iCheck IODINE validation study (Jan 2013)

In cooperation with GAIN iCheck IODINE to analyse iodization level of table salt was tested and validated. iCheck IODINE is a BioAnalyt test kit that quantitatively measures the content of potassium iodate in salt in a simple, safe, and rapid way.

Linearity of analysis ranged from 5 to 75 mg/kg iodine, with 1 mg/kg being the determination limit; the intra- and interassay imprecision was 0.9%, 0.5%, and 0.7% and 1.5%, 1.7%, and 2.5% for salt samples with iodine contents of 17, 30, and 55 mg/kg, respectively. Comparison with the iodometric method showed high agreement between the methods (R2 = 0.978; limits of agreement, -10.5 to 10.0 mg/kg).

iCheck IODINE offers a field- and user-friendly solution to quantifying potassium iodate salt content reliably. For countries that use potassium iodide in salt iodization programs, further validation is required.

Download PDF here.


iCheck used in remote areas in Chad for vitamin A blood analysis (July 2012)

Scientists from Swiss Tropical and Public Health Institute in Basel show, that iCheck FLUORO and iCheck CAROTENE can be used for the blood and milk assessment of vitamin A and pre-cursors in livestock and populations in remote areas.

The results of the study support an ecological linkage between human retinol level and livestock milk retinol. The scientists show, that nomadic pastoralists (i.e. persons who herd livestock, often as nomadic wanderer without a set farm area) have higher blood retinol concentration compared to semi-nomadic and sedentary women and children, who seem to be more vulnerable to deficiency.

The reason for this is, that nomadic pastoralists have higher milk consumption: Nomadic communities migrate considerable distances, increasing self-consumption of milk as it is not easily marketed during this period. Higher milk consumption likely explains the increased retinol values in nomadic women and children.

To read the publication, click here.


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