Standard
In the analysis work, it often demanded to apply high-quality compound with the exact content being accurate in order to be compared as the detection control or used to calibrate the instrument, the compound is known as standard sample.
Standard refers to the standard substance used for measuring the potency of biological products. When the production department submits to a higher authority for approval of the quality standard of the biological product, they should also provide the standard sample (indicated in unit (μ)) used for measuring the potency of the tested product.
According to different application, the verification products can be divided into biological standard for the testing of biological products, endocrine drugs, antibiotics and other bioassay and chemical standards including:
1 chemical standards used for calibration of the instrument;
2 chemical reference standards used for calibration of the ultraviolet or infrared spectrum of the drugs;
3 control standards used for the purity test of drugs as well as the impurity control or as the control standards for content determination of the medicine.
In the page 67 of the appendix in the People's Republic of China Pharmacopoeia 1990 1st edition, we can find hundreds kinds of standards including bornyl ester acetate, eugenol and panaxadiol as well as 39 kinds of control medicine for the purify inspection of traditional Chinese medicine, impurity control or the content determination.
International standards
This refers to standard sample, with the potency units of the existing international standard sample potency units as baseline, undergoing further calibration of its potency units on the basis of a wide range of international cooperation. Its potency is expressed in 1U. For a certain product, for the establishment of the first international standard sample, the determination of its potency units should be consulted and decided by the Committee of Experts before the announcement. The international standard is a standard reference substance for worldwide preparation of national standards, so that the international standards can achieve unity.
Reagents and standards
All reagents in the food analysis laboratories should be clearly labeled to indicate the following: 1 name; 2 the date of preparation; 3 Signature from the people in charge; 4 if necessary, we need to add content such as safety and validity and so on.
Most food analysis should use standard sample as reference for qualitative and quantitative determination. The standard sample should be classified according to the following classification methods: 1 international standard; 2 national standards; 3 internal standard; 4 other standards.
Receptacle for reference standards should be clearly affixed to the label, to indicate the following: 1 name; 2 standard document number; 3 Opening times; 4 Validity; 5 Signature.
In addition, the laboratory should keep all the necessary specific files for all the necessary reference standards.
Capacity analysis standard solution should also be strictly managed. It should be clearly posted on all the standard solution containers with labels to indicate: 1 name; 2 concentration; 3 formulation date; 4 No of formulated procedures; 5 storage conditions; 6 validity; 7 Signature from people in charge.
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- Chemical Name:
- pH Indicator solution, universal pH 0-5
- Chemical Name:
- JHAP-43 Mix
- Structure:
- Chemical Name:
- 2-Diphenylacetyl-indan-1,3-dione-1-(2-butenylidene)hydrazone, 3-(2-Butenylidene-hydrazono)-2-diphenylacetyl-indan-1-one
- CAS:
- 103480-19-9
- MF:
- C27H22N2O2
- Chemical Name:
- JP-8 Military Fuel solution
- Chemical Name:
- Potassium sulfate fertilizer (elemental composition)
- Structure:
- Chemical Name:
- Sulfur Standard for AAS
- MF:
- S8
- Chemical Name:
- GMO Standard ERM-BF424
- Chemical Name:
- Rice flour (trace elements)
- Chemical Name:
- Reversed Phase Test Mix 1
- Structure:
- Chemical Name:
- Cesium Standard for ICP
- MF:
- Cs
- Chemical Name:
- EPA 8270C Base-Neutrals Mix
- Chemical Name:
- Estuarine sediment (trace elements)
- Chemical Name:
- Microcystin RR-YR-LR solution
- Chemical Name:
- EPA Haloethers Mix
- Chemical Name:
- Disposable UV-grade methacrylate cuvettes
- Chemical Name:
- 8260 Surrogate Spike Mix
- Chemical Name:
- Lichen (trace elements)
- Chemical Name:
- Mercury 202Hg (certified for isotope abundance ratio)
- Chemical Name:
- Interferonbeta1a/Humaninterferonbeta1a
- CAS:
- 145258-61-3
- Chemical Name:
- Sodium acetate Acetic acid solution
- Chemical Name:
- HYDRANALCOULOMATAG-H
- Chemical Name:
- HYDRANALIMIDAZOLE
- Structure:
- Chemical Name:
- grevillol
- CAS:
- 5259-01-8
- MF:
- C19H32O2
- Structure:
- Chemical Name:
- EPOXYBERGAMOTTIN
- CAS:
- 206978-14-5
- MF:
- C21H22O5
- Chemical Name:
- ddNTP set
- Structure:
- Chemical Name:
- Europium, AAS standard solution, Specpure, Eu 1000μg/ml
- MF:
- Eu
- Structure:
- Chemical Name:
- Gallium, AAS standard solution, Specpure, Ga 1000μg/ml
- MF:
- Ga
- Structure:
- Chemical Name:
- Indium, AAS standard solution, Specpure, In 1000μg/ml
- MF:
- In
- Structure:
- Chemical Name:
- Gadolinium, AAS standard solution, Specpure, Gd 1000μg/ml
- MF:
- Gd
- Structure:
- Chemical Name:
- Uranium, AAS standard solution, Specpure, U 1000μg/ml
- MF:
- U
- Chemical Name:
- Round crystal window
- Chemical Name:
- EPA 502/524.2 VOC Mix
- Chemical Name:
- Butter fat (pure & adulterated fat)
- Chemical Name:
- EPA 551B Halogenated Volatiles Mix
- Chemical Name:
- Rice flour (amylose, low level)
- Structure:
- Chemical Name:
- Rhodium Standard for AAS
- MF:
- Rh
- Structure:
- Chemical Name:
- Cadmium ICP/DCP standard solution
- MF:
- Cd
- Chemical Name:
- Rare Earth Polishing compound for crystal-polishing kit
- Chemical Name:
- PCB Kit
- Chemical Name:
- EPA Purgeable Internal Standard Mix
- Structure:
- Chemical Name:
- Selenium Standard for ICP
- MF:
- Se2
- Chemical Name:
- Bovine eye (Clenbuterol blank)
- Chemical Name:
- DCMA PCB Mixture
- Structure:
- Chemical Name:
- 2-Diphenylacetyl-3-(propylidene-hydrazono)indan-1-one, 2-Diphenylacetyl-indan-1,3-dione-1-propylidenehydrazone
- CAS:
- 1119449-20-5
- MF:
- C26H22N2O2
- Chemical Name:
- Human hair (trace elements)
- Chemical Name:
- EPA 552 Halogenated Acetic Acids Mix
- Chemical Name:
- LC-CN/LC-PCN Test Mix
- Chemical Name:
- EPA 8270 Surrogate Standards Mix 1
- Chemical Name:
- EPA 505/525 Update Pesticides Mix A
- Chemical Name:
- PVOC Mix
- Chemical Name:
- Chlorine in nitrogen
- Structure:
- Chemical Name:
- hydroxocobalamin monohydrochloride
- CAS:
- 59461-30-2
- MF:
- C62H89ClCoN13O15P
- Structure:
- Chemical Name:
- 82999, 237NpO2 (V encapsulated)
- CAS:
- 58670-16-9
- MF:
- NpO2
- Structure:
- Chemical Name:
- p,p'-DDA
- CAS:
- 198-35-6
- MF:
- C20H13N
- Structure:
- Chemical Name:
- 105-99-7
- CAS:
- 105-99-7
- MF:
- C14H26O4
- Structure:
- Chemical Name:
- 20958-18-3
- CAS:
- 20958-18-3
- MF:
- C18H14O3
- Structure:
- Chemical Name:
- Trimipramine-D3 maleate
- CAS:
- 1185245-93-5
- MF:
- C24H27D3N2O4
- Structure:
- Chemical Name:
- Temazepam Related Compound G (15 mg) (7-Chloro-1,4-dimethyl-5-phenyl-4,5-dihydro-1H-1,4-benzodiazepine-2,3-dione)
- CAS:
- 93329-92-1
- MF:
- C17H15ClN2O2
- Structure:
- Chemical Name:
- 92-66-0
- CAS:
- 92-66-0
- MF:
- C12H9Br
- Structure:
- Chemical Name:
- (S)-1-(3-((ethyl(methyl)carbamoyl)oxy)phenyl)-N,N-dimethylethanamine
- CAS:
- 415973-05-6
- MF:
- C14H22N2O2
- Chemical Name:
- AQUATIC PLANT (DUCK WEED)
- Structure:
- Chemical Name:
- (2S)-5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-4-chromanone, 3',5,7-Trihydroxy-4-methoxyflavanone
- CAS:
- 69097-99-0
- MF:
- C16H14O6
- Chemical Name:
- GalantaMine HydrobroMide Related CoMpounds Mixture
- Structure:
- Chemical Name:
- Ranitidine Resolution Mixture
- MF:
- C13H22N4O3S
- Structure:
- Chemical Name:
- Cyclopentylalbendazole
- CAS:
- 77723-30-9
- MF:
- C14H17N3O2S
- Structure:
- Chemical Name:
- HydroxyMethylclenbuterol hydrochloride
- CAS:
- 37162-89-3
- MF:
- C12H19Cl3N2O2
- Structure:
- Chemical Name:
- 2-Isopropyl-D7-thioxanthen-9-one Isopropylthioxanthon-D7 ITX-D7
- CAS:
- 1173019-24-3
- MF:
- C16H14OS
- Structure:
- Chemical Name:
- Difloxacin-D3 hydrochloride hydrate(see Data Sheet)
- CAS:
- 1173021-89-0
- MF:
- C21H20ClF2N3O3
- Structure:
- Chemical Name:
- 5-Eicosylresorcinol
- CAS:
- 64645-61-0
- MF:
- C26H46O2
- Chemical Name:
- ASTM D4815 Quantitative Calibration Kit
- Chemical Name:
- Organophosphorus Pesticides Mix A
- Chemical Name:
- CALORIMETRIC NATURAL GAS REFERENCE STANDARD
- Chemical Name:
- MALDI MATRIX, UNIVERSAL
- Chemical Name:
- ZINC ALUMINUM COPPER ALLOY
- Structure:
- Chemical Name:
- TRIAZOLAM-D4
- CAS:
- 145225-04-3
- MF:
- C17H8Cl2D4N4
- Chemical Name:
- LATEX SPHERES
- Structure:
- Chemical Name:
- AMITRIPTYLINE METABOLITE (+/-)-
- CAS:
- 64520-05-4
- MF:
- C20H23NO
- Structure:
- Chemical Name:
- VERBASCOSE
- CAS:
- 546-62-3
- MF:
- C30H52O26
- Structure:
- Chemical Name:
- S(-)-SCH-23388 DES-CHLORO- HCL
- CAS:
- 109010-52-8
- MF:
- C17H19NO
- Structure:
- Chemical Name:
- HEPTADECANOIC ACID TRYPTAMIDE
- CAS:
- 232257-97-5
- MF:
- C27H44N2O
- Structure:
- Chemical Name:
- N-ALLYLNORMETAZOCINE
- CAS:
- 14198-28-8
- MF:
- C17H23NO
- Chemical Name:
- ENDOTOXIN STANDARD
- Chemical Name:
- APPLE (DIETARY FIBRE)
- Chemical Name:
- BRAN BREAKFAST CEREAL (DIETARY FIBRE)
- Chemical Name:
- MUSSEL TISSUE (TRACE ELEMENTS)
- Chemical Name:
- HUMAN SERUM (PROGESTERONE)
- Chemical Name:
- GENOMIC DNA OF LISTERIA MONOCYTOGENES (4B, NCTC 11994)
- Chemical Name:
- EPA 8270 BASE/NEUTRALS SURROGATE*SPIKE MIX
- Chemical Name:
- CYTIDINE PHOSPHATES HPLC MARKER
- Chemical Name:
- HYDROUS BENZOYL PEROXIDE - REFERENCE SPECTRUM
- Chemical Name:
- HEPARIN LOW-MOLECULAR-MASS FOR CALIBRATION CRS
- Chemical Name:
- OXYTOCIN/DESMOPRESSIN VALIDATION MIXTURE
- Chemical Name:
- POTASSIUM CLAVULANATE - REFERENCE SPECTRUM
- Structure:
- Chemical Name:
- ESTRADIOL FOR PEAK IDENTIFICATION
- MF:
- C18H24O2
- Chemical Name:
- HYDRANAL-COULOMAT E
- Chemical Name:
- POLYWAX 500
- Structure:
- Chemical Name:
- PALLADIUM MATRIX MODIFIER SOLUTION
- MF:
- Pd
- Chemical Name:
- HPLC PEPTIDE STANDARD MIXTURE