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	1.	Simultaneous analysis of tartrazine and its intermediates by reversed phase liquid chromatography. [electronic resource] by Wittmer, D P Nuessle, N O Haney, W G Producer: 19750922 In: Analytical chemistry vol. 47 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Simultaneous analysis of hydrocortisone and hydrocortisone phosphate by high-pressure liquid chromatography: reversed-phase, ion-pairing approach. [electronic resource] by Korpi, J Wittmer, D P Sandmann, B J Haney, W G Producer: 19761101 In: Journal of pharmaceutical sciences vol. 65 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	High-pressure liquid chromatographic determination of ascorbic acid in selected foods and multivitamin products. [electronic resource] by Sood, S P Sartori, L E Wittmer, D P Haney, W G Producer: 19760706 In: Analytical chemistry vol. 48 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Simultaneous high-pressure liquid chromatographic determination of niacin and niacinamide in multivitamin preparations: reversed-phase, ion-pairing approach. [electronic resource] by Sood, S P Wittmer, D P Ismaiel, S A Haney, W G Producer: 19770331 In: Journal of pharmaceutical sciences vol. 66 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)