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Frequently Asked Questions
Which matrices are possible for a phospholipid analysis?
We routinely perform analyses on the following matrices:
- Lecithin samples (e.g. soy lecithin, sunflower lecithin, rapeseed lecithin, hydrogenated lecithin, hydrolyzed lecithin, lyso-lecithin, soybeans, etc.)
- Lecithin residues in edible oils
- Capsulated materials
- Marine source (e.g. fish oil, krill oil, fish meal, seafood)
- Egg samples
- Milk samples (e.g. infant nutrition, liquid milk, creams, chocolate, cheese, whey protein)
- PS enriched samples
- Dispersions, emulsions, liposomal formulations
- Algae samples
We can perform the phospholipid analysis on nearly every matrix. If you have a special sample that is not listed above, please contact us.
How much sample should be sent?
- Soy/Sunflower Lecithins (powder or syrup), Krill/Fish Oil, Egg, PS Samples – 5 g
- Milk Samples (powder), Infant Nutrition, Fish Feed, Fish Meal – 10 g
- Milk Samples (liquid) – 50 mL
- Lecithin Residues in Edible Oils – 20 g
- Hard Capsules/Softgels/Gummies/Chocolate – 10 pieces
- Liposomal Dispersions – 10 g
- Algae – 10 g
Which phospholipids can be determined within the analysis?
Our routine PL analysis is a multi-component analysis. It covers the quantification of the following phospholipids:
| Code | Phospholipid |
| PC | Phosphatidylcholine |
| LPC | Lyso-Phosphatidylcholine |
| PI | Phosphatidylinositol |
| LPI | Lyso-Phosphatidylinositol |
| PS-Na | Phosphatidylserine Sodium |
| LPS | Lyso-Phosphatidylserine |
| SPH | Sphingomyelin |
| PE | Phosphatidylethanolamine |
| LPE | Lyso-Phosphatidylethanolamine |
| APE | N-Acyl-Phosphatidylethanolamine |
| PG | Phosphatidylglycerol |
| DPG | Diphosphatidylglycerol |
| PA | Phosphatidic acid |
| LPA | Lyso-Phosphatidic acid |
Other potential, but unidentified phospholipids can be detected and are quantified as sum. As a result, we can offer you a total phospholipid content in your sample.
What is the turnaround time?
Results are typically available within 5 business days for most phospholipid samples and 10 business days for milk-based samples that require extraction. In addition, expedited analyses may be requested at a cost. We offer a RUSH and EXTREME RUSH option.
Where am I sending samples to?
Steelyard Analytics Inc.
704 Quince Orchard Rd Suite 130
Gaithersburg, MD 20878
USA
Are analyses according to GMP also possible for phospholipids?
Yes!
More information can be found here: