Stability and assessment of amino acids in parenteral nutrition solutions

N Unger, U Holzgrabe - Journal of Pharmaceutical and Biomedical Analysis, 2018 - Elsevier
Sterile amino acid solutions are applied in medical care as part of Total Parenteral Nutrition
systems. Typical formulations consist of variable admixtures of essential and non-essential …

Determination of eight water-and fat-soluble vitamins in multi-vitamin pharmaceutical formulations by high-performance liquid chromatography

P Moreno, V Salvado - Journal of chromatography A, 2000 - Elsevier
In the present work, a reversed-phase high-performance liquid chromatographic procedure
has been developed for the determination of water-soluble vitamins (thiamine hydrochloride …

Measuring and tracking vitamin B12: A review of current methods with a focus on optical spectroscopy

G Tsiminis, EP Schartner, JL Brooks… - Applied spectroscopy …, 2017 - Taylor & Francis
Vitamin B12 deficiency has been associated with an increased risk of cognitive decline. This
literature review explores the current methods available for measuring vitamin B12 in human …

[HTML][HTML] Ultrasound assisted combined molecularly imprinted polymer for selective extraction of nicotinamide in human urine and milk samples: spectrophotometric …

A Asfaram, M Ghaedi, K Dashtian - Ultrasonics sonochemistry, 2017 - Elsevier
Ultrasound-assisted dispersive solid phase microextraction followed by UV–vis
spectrophotometer (UA-DSPME-UV–vis) was designed for extraction and preconcentration …

Combined measurement of 6 fat-soluble vitamins and 26 water-soluble functional vitamin markers and amino acids in 50 μL of serum or plasma by high-throughput …

Ø Midttun, A McCann, O Aarseth, M Krokeide… - Analytical …, 2016 - ACS Publications
Targeted metabolic profiling characterized by complementary platforms, multiplexing and
low volume consumption are increasingly used for studies using biobank material. Using …

Development of a validated HPLC method for the determination of B‐complex vitamins in pharmaceuticals and biological fluids after solid phase extraction

PF Chatzimichalakis, VF Samanidou… - Journal of …, 2004 - Wiley Online Library
An HPLC method was developed for the simultaneous determination of seven water‐soluble
vitamins, viz. thiamine, riboflavin, nicotinic acid, nicotinamide, pyridoxine, cyanocobalamin …

Development of a validated liquid chromatography method for the simultaneous determination of eight fat-soluble vitamins in biological fluids after solid-phase …

PF Chatzimichalakis, VF Samanidou… - … of Chromatography B, 2004 - Elsevier
In the present study, a simple and rapid reversed-phase HPLC procedure has been
developed for the simultaneous determination of eight fat-soluble vitamins (retinol …

Reversed-phase liquid chromatography on an amide stationary phase for the determination of the B group vitamins in baby foods

P Viñas, C López-Erroz, N Balsalobre… - … of chromatography A, 2003 - Elsevier
A liquid chromatographic method for the separation and determination of several water-
soluble vitamins of the B group is proposed. The procedure is based on the use of a new …

High-performance liquid chromatography method for the simultaneous determination of thiamine hydrochloride, pyridoxine hydrochloride and cyanocobalamin in …

ML Marszałł, A Lebiedzińska, W Czarnowski… - … of Chromatography A, 2005 - Elsevier
The method for the simultaneous determination of thiamine hydrochloride, pyridoxine
hydrochloride and cyanocobalamin by high-performance liquid chromatography (HPLC) …

Determination of folates in human plasma using hydrophilic interaction chromatography− tandem mass spectrometry

SD Garbis, A Melse-Boonstra, CE West… - Analytical …, 2001 - ACS Publications
Folic acid is an essential nutrient, and folate deficiency is associated with a variety of
disorders including neural tube defects (during pregnancy) and heart disease. A fast …