If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
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For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
94119
Glycine
analytical standard, for nitrogen determination according to Kjeldahl method
Synonym(s):
2-Aminoacetic acid, Aminoacetic acid, Aminoethanoic acid, Glycocoll
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
10 g | Check Cart for Availability | CHF 84.80 |
About This Item
grade
analytical standard
Quality Segment
assay
≥99.0%
analyte chemical class(es)
amino acids, peptides, proteins
technique(s)
HPLC: suitable, gas chromatography (GC): suitable, titration: suitable
impurities
18.6%±0.2% total nitrogen acc. to Kjeldahl
loss
≤0.05% loss on drying
pKa (25 °C)
(1) 2.35, (2) 9.60, 2.35
mp
240 °C (dec.) (lit.)
solubility
1 M HCl: 75 mg/L, clear, colorless (2.252g in 30mL)
anion traces
chloride (Cl-): ≤50 mg/kg
cation traces
NH4+: ≤200 mg/kg
application(s)
food and beverages
format
neat
SMILES string
NCC(O)=O
InChI
1S/C2H5NO2/c3-1-2(4)5/h1,3H2,(H,4,5)
InChI key
DHMQDGOQFOQNFH-UHFFFAOYSA-N
General description
Application
- Evaluate Kjeldahl′s procedure to determine total protein content of reference standards used in clinical laboratories.
- Analyze beer and wine for their protein and total usable nitrogen using a microwell ninhydrin assay.
- Compare Kjeldahl and Dumas methods for routine analysis of dairy products in an interlaboratory study.
- Simultaneously determine total phosphorus and total Kjeldahl nitrogen in surface water samples.
- Quantitatively determine nitrate in surface waters using Valdetrama method.
- Measure low level Kjeldahl nitrogen using an AutoAnalyzer.
Biochem/physiol Actions
Features and Benefits
- Available in a neat format in a secure glass bottle to ensure its stability for the entire shelf life until opened.
- High-quality offering accurate titer determinations
1 of 1
This Item | |||
|---|---|---|---|
| description analytical standard, for nitrogen determination according to Kjeldahl method | description BioXtra, ≥99% (titration) | description certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland | description meets analytical specification of Ph. Eur., BP, USP, 99-101% (based on anhydrous substance) |
| format neat | format - | format neat | format - |
| technique(s) gas chromatography (GC): suitable, titration: suitable, HPLC: suitable | technique(s) electron microscopy: suitable | technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) IR spectroscopy: suitable |
| grade analytical standard | grade - | grade certified reference material, TraceCERT® | grade - |
| impurities 18.6%±0.2% total nitrogen acc. to Kjeldahl | impurities Insoluble matter, passes filter test | impurities - | impurities ≤1.0% ninhydrin-positive substances, organic volatile impurities, complies (GC), residual solvents, complies, hydrolyzable substances, complies, ≤0.001% heavy metals (as Pb) |
| analyte chemical class(es) amino acids, peptides, proteins | analyte chemical class(es) - | analyte chemical class(es) amino acids, peptides, proteins | analyte chemical class(es) - |
| loss ≤0.05% loss on drying | loss ≤0.05% loss on drying, HV, 20-26 °C | loss - | loss ≤0.2% loss on drying, 105 °C, 2 h |
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Storage Class
13 - Non Combustible Solids
WGK
WGK 1
PPE (personal protective equipment)
Eyeshields, Gloves, type N95 (US)
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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