540
Preservatives, Organic Acids Carboxylic Acids (Pyruvic and Lactic) on Ultra Aqueous C18 Peak List: 1. pyruvic acid 2. lactic acid
H P LC A P P L I C AT I O N S | F O O D S & F L AV O R S
Sample: Inj.: Solvent: Column: Cat.#: Dimensions: Particle size: Pore size: Conditions: Mobile phase: Flow: Temp.: Det.:
Conc. (mg/mL) 5 50 5µL 50mM potassium phosphate, pH 2.5
restek innovation!
Ultra Aqueous C18 9178565 150mm x 4.6mm 5µm 100Å
Excellent peak symmetry in 100% aqueous mobile phase!
50mM potassium phosphate, pH 2.5 1.0mL/min. 26°C UV @ 210nm
Carboxylic Acids on Ultra Aqueous C18
Peak List: 1. malonic acid 2. lactic acid 3. acetic acid 4. citric acid 5. succinic acid 6. fumaric acid
Conc. (µg/mL): 500 500 1000 1000 2000 10
4
5 3 1
Sample: Inj.: Solvent:
10µL water
Column: Cat.#: Dimensions: Particle size: Pore size:
Ultra Aqueous C18 9178565 150mm x 4.6mm 5µm 100Å
Conditions: Mobile phase:
6
2
50mM potassium phosphate, pH 2.5: acetonitrile (99:1) 1.5mL/min. 25°C UV @ 210nm
Flow: Temp.: Det.:
0
1
2
LC_0297
3
4 min.
LC_0140
Organic Acids on Allure® Organic Acids
Organic Acids on Allure® Organic Acids
restek innovation! Baseline resolution of tartaric and quinic acids in 100% aqueous mobile phase!
Peak List: 1. malic acid 2. isocitric acid Sample: Inj.: Conc.:
Peak List: 1. tartaric acid 2. quinic acid 3. malic acid 4. citric acid 5. fumaric acid
Conc. (mg/mL) 1 1 1 1 0.005
Solvent:
5µL approx. 0.2 mg/mL malic acid; 0.02 mg/mL isocitric acid water
Column: Cat.#: Dimensions: Particle size: Pore size:
Allure® Organic Acids 9165575 250mm x 4.6mm 5µm 60Å
Sample: Inj.: Solvent:
10µL standard solution water
Conditions: Mobile phase: Flow: Temp.: Det.:
100mM KH2PO4, pH 2.5 0.5mL/min. ambient UV @ 226nm
Column: Cat.#: Dimensions: Particle size: Pore size:
Allure® Organic Acids 9165585 300mm x 4.6mm 5µm 60Å
Conditions: Mobile phase: Flow: Temp.: Det.:
100mM phosphate buffer, pH 2.5 0.5mL/min. ambient UV @ 226nm
LC_0311
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LC_0238
