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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- Structure:
- Chemical Name:
- alpha-Methyl-4-biphenylacetic acid
- CAS:
- 6341-72-6
- MF:
- C15H14O2
- Structure:
- Chemical Name:
- 1,3-DIHYDROXY-5-NONADECYLBENZEN
- CAS:
- 35176-46-6
- MF:
- C25H44O2
- Structure:
- Chemical Name:
- CAFFEINE (TRIMETHYL-13C3)
- CAS:
- 78072-66-9
- MF:
- C8H12N4O2
- Structure:
- Chemical Name:
- Zinc acexamate
- CAS:
- 70020-71-2
- MF:
- C16H28N2O6Zn
- Structure:
- Chemical Name:
- Olopatadine N-Oxide
- CAS:
- 203188-31-2
- MF:
- C21H23NO4
- Structure:
- Chemical Name:
- PFBOA-PROPIONALDEHYDE
- CAS:
- 932710-53-7
- MF:
- C10H8F5NO
- Structure:
- Chemical Name:
- (R)-2-(2-OXO-PYRROLIDIN-1-YL)-BUTYRAMIDE
- CAS:
- 103765-01-1
- MF:
- C8H14N2O2
- Structure:
- Chemical Name:
- Carazolol D7
- CAS:
- 1173021-02-7
- MF:
- C18H22N2O2
- Structure:
- Chemical Name:
- α-Pyrrolidinopentiphenone (hydrochloride)
- CAS:
- 5485-65-4
- MF:
- C15H22ClNO
- Chemical Name:
- Crystal violet-D6 trihydrate
- Structure:
- Chemical Name:
- Fenbendazole-aMine hydrochloride
- CAS:
- 1448346-29-9
- MF:
- C13H12ClN3S
- Structure:
- Chemical Name:
- Metronidazole-13C2,15N2
- CAS:
- 1173020-03-5
- MF:
- C6H9N3O3
- Structure:
- Chemical Name:
- CALCIUM ION CHROMATOGRAPHY STANDARD
- CAS:
- 14127-61-8
- MF:
- Ca+2
- Structure:
- Chemical Name:
- MALACHITE GREEN D5 PICRATE
- CAS:
- 1258668-21-1
- MF:
- C29H22D5N5O7
- Structure:
- Chemical Name:
- CEFACLOR, DELTA-3-ISOMER (30 MG)
- CAS:
- 152575-13-8
- MF:
- C15H14ClN3O4S
- Chemical Name:
- HYOSCINE BUTYLBROMIDE IMPURITY E
- Chemical Name:
- FENTICONAZOLE IMPURITY D
- Structure:
- Chemical Name:
- 1,4-BIS(2,2,2-TRICHLORO-1-FORMAMIDOETHYL)PIPERAZINE-D8
- CAS:
- 948595-12-8
- MF:
- C10H6Cl6D8N4O2
- Structure:
- Chemical Name:
- METHAQUALONE-D7
- CAS:
- 136765-41-8
- MF:
- C16H7D7N2O
- Structure:
- Chemical Name:
- 1,2-DIBROMOETHANE-13C2
- CAS:
- 33458-49-0
- MF:
- C2H4Br2
- Structure:
- Chemical Name:
- L-METHIONINE HYDROCHLORIDE SOLUTION
- CAS:
- 6810-12-4
- MF:
- C5H12ClNO2S
- Structure:
- Chemical Name:
- INDINAVIR (100 MG)F0D3080.971MG/MG(AI)
- CAS:
- 180683-37-8
- MF:
- C36H49N5O5
- Structure:
- Chemical Name:
- HYOSCYAMINE RELATED COMPOUND A (10 MG) (NORHYOSCYAMINE SULFATE)
- CAS:
- 537-29-1
- MF:
- C16H21NO3
- Structure:
- Chemical Name:
- 2' 3'-DIDEOXYADENOSINE 5'-TRIPHOSPHATE S
- CAS:
- 178451-61-1
- MF:
- C10H17N5NaO11P3
- Structure:
- Chemical Name:
- METHYL CIS CIS-11 14-EICOSADIENOATE
- CAS:
- 61012-46-2
- MF:
- C21H38O2
- Chemical Name:
- BUPIVACAINE IMPURITY E
- Structure:
- Chemical Name:
- MOLYBDATE REAGENT
- MF:
- MoO4-2
- Structure:
- Chemical Name:
- (9Z,12Z)-octadeca-9,12-dienoic acid, monoester with glycerol
- CAS:
- 26545-74-4
- MF:
- C21H38O4
- Structure:
- Chemical Name:
- PicrosideⅡ
- CAS:
- 989-81-1
- MF:
- C29H38N2O3
- Structure:
- Chemical Name:
- 2,2',3,3',4,4',5,6,6'-nonabde
- CAS:
- 437701-79-6
- MF:
- C12HBr9O
- Structure:
- Chemical Name:
- D-Phenylalanine, N-[[4-(1-methylethyl)cyclohexyl]carbonyl]-, cis-
- CAS:
- 105816-06-6
- MF:
- C19H27NO3
- Structure:
- Chemical Name:
- N-isopropyltropinium
- CAS:
- 58005-18-8
- MF:
- C11H22BrNO
- Structure:
- Chemical Name:
- Olaquindox-d4
- CAS:
- 1189487-82-8
- MF:
- C12H13N3O4
- Structure:
- Chemical Name:
- ALPHA-HYDROXYTRIAZOLAM-D4
- CAS:
- 145225-01-0
- MF:
- C17H8Cl2D4N4O
- Structure:
- Chemical Name:
- Mahanimbine
- CAS:
- 21104-28-9
- MF:
- C23H25NO
- Structure:
- Chemical Name:
- N-Ethyl-N-(2-hydroxyethyl)-4-(4-nitrophenylazo)aniline, 2-{Ethyl-d3-[4-(4-nitro-phenylazo)phenyl]amino}ethanol
- CAS:
- 947601-97-0
- MF:
- C16H18N4O3
- Structure:
- Chemical Name:
- Pyrasulfotole
- CAS:
- 365400-11-9
- MF:
- C14H13F3N2O4S
- Structure:
- Chemical Name:
- 4-tert-Octylphenol Monoethoxylate-13C6
- CAS:
- 1173019-48-1
- MF:
- C16H26O2
- Structure:
- Chemical Name:
- 3,4-Methylenedioxy-α-Pyrrolidinobutiophenone (hydrochloride)
- CAS:
- 24622-60-4
- MF:
- C15H20ClNO3
- Structure:
- Chemical Name:
- Mebendazole-d3
- CAS:
- 1173021-87-8
- MF:
- C16H12N3O3
- Structure:
- Chemical Name:
- (2S)-1-[2-Methylpropanoyl]-pyrrolidine-2-carboxylic Acid
- CAS:
- 23500-15-4
- MF:
- C9H15NO3
- Chemical Name:
- Nitroxynil-13C6
- CAS:
- 1325559-31-6
- Structure:
- Chemical Name:
- Fluxapyroxad
- CAS:
- 907204-31-3
- MF:
- C18H12F5N3O
- Structure:
- Chemical Name:
- 1-Methyl-2-(Methylthio)iMidazole
- CAS:
- 14486-52-3
- MF:
- C5H8N2S
- Chemical Name:
- HYDRANAL(R)-SOLVENT CM
- Structure:
- Chemical Name:
- 2,6-DIHYDROXY-4-METHYLBENZALDEHYDE
- CAS:
- 526-37-4
- MF:
- C8H8O3
- Structure:
- Chemical Name:
- PCP-D5
- CAS:
- 60124-86-9
- MF:
- C17H25N
- Structure:
- Chemical Name:
- BISPHENOL A-(3-CHLORO-2-HYDROXYPROPYL)-&
- CAS:
- 227947-06-0
- MF:
- C21H27ClO5
- Structure:
- Chemical Name:
- BENZOYLECGONINE-D3 TETRAHYDRATE--DEA SCH
- CAS:
- 115732-68-8
- MF:
- C16H16D3NO4
- Chemical Name:
- WARFARIN RELATED COMPOUND A (50 MG) (3-(O-HYDROXYPHENYL)-5-PHENYL-2-CYCLOHEXEN-1-ONE)
- CAS:
- 37209-23-7
- Structure:
- Chemical Name:
- 3,3',4,4'-TETRABROMODIPHENYL ETHER
- CAS:
- 93703-48-1
- MF:
- C12H6Br4O
- Chemical Name:
- 2 FUEL OIL
- CAS:
- 68476-30-2
- Structure:
- Chemical Name:
- P-HYDROXYBENZOYLECGONINE
- CAS:
- 90899-22-2
- MF:
- C16H19NO5
- Chemical Name:
- OXALIPLATIN IMPURITY D
- 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:
- ASTM D4815 Quantitative Calibration Kit
- Chemical Name:
- Organophosphorus Pesticides Mix A
- Chemical Name:
- UV quartz cuvette
- Chemical Name:
- Hellma absorption cuvettes, standard cells, Macro
- Chemical Name:
- Hellma fluorescence cuvettes, standard cells, Macro
- 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
- Structure:
- Chemical Name:
- ERYTHROMYCIN B
- CAS:
- 527-75-3
- MF:
- C37H67NO12
- Structure:
- Chemical Name:
- REBAUDIOSIDE B(P)(NEW)
- CAS:
- 58543-17-2
- MF:
- C38H60O18
- 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
- Structure:
- Chemical Name:
- IMIDACLOPRID D4 (IMIDAZOLIDIN-4,4,5,5 D4)
- CAS:
- 1015855-75-0
- MF:
- C9H10ClN5O2
- 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
- Structure:
- Chemical Name:
- TRIMETHOPRIM-D9 MAJOR
- CAS:
- 1189460-62-5
- MF:
- C14H18N4O3
- Chemical Name:
- HPLC PEPTIDE STANDARD MIXTURE
- Structure:
- Chemical Name:
- 1,2-DIBROMOETHANE, [1,2-14C]-
- CAS:
- 22712-78-3
- MF:
- C2H4Br2
- Structure:
- Chemical Name:
- ciclobendazole
- CAS:
- 31431-43-3
- MF:
- C13H13N3O3
- Structure:
- Chemical Name:
- 6alpha-fluoro-11beta,21-dihydroxy-16alpha-methylpregna-1,4-diene-3,20-dione 21-pivalate
- CAS:
- 29205-06-9
- MF:
- C27H37FO5
- Structure:
- Chemical Name:
- hydroxocobalamin monohydrochloride
- CAS:
- 59461-30-2
- MF:
- C62H89ClCoN13O15P
- Structure:
- Chemical Name:
- 82999, 237NpO2 (V encapsulated)
- CAS:
- 58670-16-9
- MF:
- NpO2