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Technical Documentation
Measuring Vitamin A in Refined Edible Oils
Measuring Iron and Vitamin A in Fortified Kernals and Flour
Measuring Iron and Iodine in Double Fortified Salt
  • Measurement of Iron and Iodine in Double Fortified Salt with iCheck Iron and iCheck Iodine
  • (FR) Mesure rapide du fer et de l'iode dans le sel doublement enrichi avec iCheck Iron et iCheck Iodine
Measuring Iron in Corn Soy Blend (CSB)
Measuring Vitamin A in Fortified Sugar and Dairy Products
Measuring Iron, Vitamin A and Iodine in Bouillon Cubes
Measuring Vitamin E, Vitamin A and β-Carotene in Animal Health
  1. Effects of antioxidant capacity-based dietary replacement of vitamin E with commercial products containing grape skin–green tea extracts or hydrolyzed wood polyphenols on poultry performance, metabolism, immune-related gene expression, and meat quality. Animal Nutrition and Metabolism. Vol (12) 2025.
  2. Evaluation of a portable fluorometer for the quantification of vitamin E in blood at key physiological stages of dairy cattle. EJ Owczarzak et al. JDS Communications. Vol 5 (4), 2024.
  3. Effect of microbial muramidase supplementation in diets formulated with different fiber profiles for broiler chickens raised under various coccidiosis management programs. C Bortoluzzi et al. Poultry Science, Vol 102 (10), 2023.
  4. A review of portable quantitative and semi-quantitative devices for measurement of vitamin A in biological samples. S.L Huey et al. Current research in Biotechnology. Vol 4, 2022.
  5. SNP-based marker-assisted selection for high provitamin A content in African cassava genetic background. ED Codjia et al. South African Journal of Science: Vol. 118 No. 1/2 (2022).
  6. Salt Used for the National School Nutrition Program (NSNP) inRural Schools of Limpopo Province, South Africa, has AdequateLevels of Iodine. M Ramugondo et al. Biochemistry Research International, 2021.
  7. Trends in iodine nutrition in Uganda since the inception of the Universal Salt Iodization programme. O Nihimbazwe et al. RUFORUM, 2021.
  8. High-Yielding and Carotenoid-Rich Clones Identification among Thirty-One Cassava Clones with Colored Flesh. N Boni et al. American Journal of Plant Science, 2021.

  9. Comparison of Near-infrared Spectroscopy with other options for total carotenoids content phenotyping in fresh cassava roots. W Abincha et al. Journal of Scientific Agriculture, 2020.

  10. Effect of broiler genetics, age, and gender on performance and blood chemistry. ML Livingston et al. Vol 6, 2020.

  11. Technical note: Rapid field test for the quantification of vitamin E, β-carotene, and vitamin A in whole blood and plasma of dairy cattle. MH Ghaffari et al. Journal of Dairy Science, Vol 102 (12), 2019.
  12. Low breastmilk vitamin A concentration is prevalent in rural Ethiopia. Z Abebe et al. EJCN, 2019.
  13. Universal Salt Iodization Provides Sufficient Dietary Iodine to Achieve Adequate Iodine Nutrition during the First 1000 Days: A Cross-Sectional Multicenter Study. S.Dold et al. The Journal of Nutrition. Vol 148(4), 2018.
  14. Candidate gene sequencing and validation of SNP markers linked to carotenoid content in cassava (Manihot esculenta Crantz). LI Udoh et al. Molecular Breeding, Vol 37, 2017.
  15. Seasonal dynamics of human retinol status in mobile pastoralists in Chad. L Crump et al. Acta Tropica, Vol 166, 2017.
  16. Genome-wide association mapping of provitamin A carotenoid content in cassava. W Esoma et al. Euphytica, Vol 212, 2016.
  17. 1152 Effect of serum concentration of β-carotene at AI on productive and reproductive parameters in lactating Holstein cows. AML Madureira et al. Journal of Animal Science, Vol 94, 2016.
  18. Results from a Compliance Study of Food Fortification in Nigeria and Implications on Regulatory Monitoring. OA Ogunmoyela et al. 2015.
  19. Comparative Validation of Five Quantitative Rapid Test Kits for the Analysis of Salt Iodine Content: Laboratory Performance, User- and Field-Friendliness. F. Rohner et al. PLOS one, September 2015.
  20. Comparison of a fluorometric assay kit with high-performance liquid chromatography for the assessment of serum retinol concentration. K. E. Aglago et al, African Health Sciences Vol 15 Issue 2, June 2015.
  21. Comparison of three spectrophotometric methods for analysis of egg yolk carotenoids. K. M. S. Islam et al., Food Chemistry, 172, 2015.
  22. Assessment of a portable device to quantify vitamin A in fortified foods (flour, sugar, and milk) for quality control. A. Laillou et al. Food and Nutrition Bulletin, 35 (4), 2014.
  23. Comparison of breast milk vitamin A concentration measured in fresh milk by a rapid field assay (iCheck Fluoro) with standard measurement of stored milk by HPLC. R. Engle-Stone. European Journal of Clinical Nutrition, vol. 68 (8), 2014.
  24. Food fortification and vitamin A analysis. A. de Jaeger of South African Grain Laboratory (SAGL). FST Magazine (South African Food Science and Technology), 2014.
  25. Rapid quantification of iron content in fish sauce and soy sauce: a promising tool for monitoring fortification programs. A. Laillou et al. Food and Nutrition Bulletin, 34, no. 2 (supplement), 2013.
  26. Quantification of vitamin A in fortified rapeseed, groundnut and soya oils using a simple portable device: comparison to High Performance Liquid Chromatography. C. Renaud et al. International Journal for Vitamin and Nutrition Research, 83 (2), 2013.
  27. Adaptation of a compact rapid vitamin A assay device (iCHECK™) to simulated field conditions and relevant substrates in Guatemala. ZM Zambo et al. The FASEB journal, 2013.
  28. Progress in screening pro-vitamin A enhanced cassava genotypes using iCheck Carotene. E.Y. Parkes et al. IITA Nigeria, abstract at ISTRC -AB, 2012.
  29. Validation of a user-friendly and rapid method for quantifying iodine content of salt. F. Rohner et al. Food and Nutrition Bulletin, vol. 33, no. 4 (supplement), 2012.
  30. Vitamin A in sugar determined by a rapid assay device. J. D. Sanchez-Mene et al. Center for Studies of Sensory Impairment, Aging and Metabolism (CeSSIAM) Bulletin of Research Abstracts, vol. 23 (1), 2012.

  31. Implementing Large-Scale Food Fortification in Ghana: Lessons Learned. RO Nyumuah et al. Food and Nutrition Bulletin. 2012.

  32. Validation of a new point-of-care assay for determination of β-carotene concentration in bovine whole blood and plasma. j Ralia et al. Veterinary Clinical Pathology. 2012.

  33. A new test kit’s potential for the rapid analysis of vitamin A in human and cow milk. F. J. Schweigert. Sight and Life, vol. 25 (3), 2011.
  34. Quantification of vitamin A in palm oil using a fast and simple portable device: method validation and comparison to High-Performance Liquid Chromatography F. Rohner et al. International Journal for Vitamin and Nutrition Research, 81 (5), 2011.

National assessments of fortified foods

  1. Household Coverage with Adequately Iodized Salt Varies Greatly between Countries and by Residence Type and  Socioeconomic Status within Countries: Results from 10 National Coverage Surveys. J.M. Knowles et al., ASN The Journal of Nutrition, 147 (Suppl.), 2017.
  2. Household Coverage of Fortified Staple Food Commodities in Rajasthan, India. G.J. Aaron et al., PLOS One, 11 (19), 2016.

Health status in population

  1. Proxy markers of serum retinol concentration, used alone and in combination, to assess population vitamin A status in Kenyan children: a cross-sectional study. E.F. Talsma, BMC Medicine, 13 (30), Additional File, 2015.
  2. Retinol assessment among women and children in Sahelian mobile pastoralists. M. Bechir. Eco Health, 9, 2012.

Videos

Instruction

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iCheck Chroma 3 – How to control your device (1 of 2)

Watch iCheck Chroma 3 to learn how to control your device (Part 1).

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iCheck Chroma 3 – How to measure your sample 2/2

Watch iCheck Chroma 3 video to learn how to measure your sample (Part 2).

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iCheck Fluoro: How to control your device

Watch iCheck Fluoro video to learn, How to control your device.

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iCheck Fluoro: How to dilute your sample for measurement

Watch iCheck Fluoro video to learn, how to measure your sample.

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iCheck Fluoro: How to inject & extract your sample

Watch iCheck Fluoro video to learn, how to inject & extract your sample.

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iCheck Fluoro: How to measure your sample

Watch iCheck Fluoro video to learn, how to measure your sample.

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iCheck Vitamin E – How to measure vitamin E in your blood sample

Watch iCheck Vitamin E to learn, how to measure vitamin E in your blood sample.

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iCheck Carotene: Self-training video

Watch iCheck Carotene: Self-training video here.

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iCheck Iodine: Self-training video

Watch iCheck Iodine: Self-training video.

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How to calibrate the balance

Watch to learn how to calibrate the balance.

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How to weigh in your sample

Learn how to weigh in your sample.

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iCheck Chroma3_Контроль приладу_Частина1/2_УКР

Watch iCheck Chroma3_Контроль приладу_Частина1/2_УКР.

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iCheck Chroma3_Контроль приладу_Частина1/2_УКР

Watch iCheck Chroma3 Як вимірювати зразок Частина 2/2 УКР .

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iCheck Fluoro: How to dilute a milk powder sample for measurement

Watch iCheck Fluoro to learn, how to dilute a milk powder sample for measurement.

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iCheck Carotene: Ready-to-use test kit for Carotenoids

Watch iCheck Carotene to learn, how Ready-to-use test kit for Carotenoids.

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iCheck Chroma 3: Device Control French Subtitles

Watch iCheck Chroma 3 to learn how to control your device with French Subtitles.

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iCheck Chroma 3: Sample Measurement French Subtitles

Watch iCheck Chroma 3 sample measurement with French Subtitles.

General

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Measuring vitamins doesn’t have to take forever

Measuring vitamins doesn’t have to take forever!

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iCheck Connect Mobile and Web App

Watch iCheck Connect Mobile and Web App.

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Measure Nutrition Now | How important are Measurement Tools?

Measure Nutrition Now | How important are Measurement Tools?

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iCheck Connect Promo Video

Watch iCheck Connect Promo Video.

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