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:
- 2S-EPHEDRONE HYDROCHLORIDE
- CAS:
- 66514-93-0
- MF:
- C10H14ClNO
- Chemical Name:
- ASTM D5442 C12-C60 Qualitative Retention Time Mix
- Chemical Name:
- ASTM D5134 Qualitative Column Evaluation Mix
- Chemical Name:
- HYDRANAL-Coulomat AF 7
- Chemical Name:
- QC-Standard Solution for EN ISO 9377-2
- Chemical Name:
- Alkane standard mixture for performance tests of GC-systems
- Structure:
- Chemical Name:
- 1,4-Butanediol solution
- MF:
- C4H10O2
- Structure:
- Chemical Name:
- Propyl 4-hydroxybenzoate-ring-13C6 solution
- MF:
- C3H7*
- Chemical Name:
- TO11/IP-6A Aldehyde/Ketone-DNPH Mix
- Chemical Name:
- Freon Mix
- Chemical Name:
- Isoparaffins Mix
- Chemical Name:
- BTEX Solution
- Chemical Name:
- Delta-press pellet holder
- Chemical Name:
- Digital Wig-L-Bug grinder/mixer
- Chemical Name:
- Tungsten carbide powder (O)
- 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:
- Cefoperazone dihydrate
- CAS:
- 113826-44-1
- MF:
- C25H29N9O9S2
- Chemical Name:
- HYDRANALCOULOMATCG-K
- Structure:
- Chemical Name:
- 16-O-METHYL-CAFESTOL
- CAS:
- 108214-28-4
- MF:
- C21H30O3
- Structure:
- Chemical Name:
- OCTADECANOIC ACID-13C18
- CAS:
- 287100-83-8
- MF:
- C18H36O2
- Chemical Name:
- MISA Group 16 Halogen Volatile Organic Mix
- Structure:
- Chemical Name:
- Cadmium Standard for ICP
- MF:
- Cd
- Structure:
- Chemical Name:
- Rhodium ICP/DCP standard solution
- MF:
- Rh
- Chemical Name:
- EPA CLP Volatile Surrogate Mix 1
- Chemical Name:
- EPA 8270 Calibration Mix 6
- Chemical Name:
- Channel sediment (trace elements)
- Structure:
- Chemical Name:
- Iron-56Fe solution
- MF:
- Fe
- Chemical Name:
- EPA TCL Volatiles Mix 4
- Structure:
- Chemical Name:
- Yttrium ICP/DCP standard solution
- MF:
- Y
- Chemical Name:
- Gas oil (1.040 % S)
- Structure:
- Chemical Name:
- 2-Diphenylacetyl-3-(methylene-hydrazono)indan-1-one, 2-Diphenylacetyl-indan-1,3-dione-1-methylidenehydrazone
- CAS:
- 1119449-21-6
- MF:
- C24H18N2O2
- Chemical Name:
- DDT-Endrin Mix
- Chemical Name:
- Single cell protein (major elements)
- Structure:
- Chemical Name:
- Magnesium ICP/DCP standard solution
- MF:
- Mg
- Chemical Name:
- Human serum (medium creatinine)
- Chemical Name:
- Carbon dioxide in helium
- Chemical Name:
- Human serum (17β-estradiol, high level)
- Chemical Name:
- Rapeseed (S, total glucosinolate)
- Chemical Name:
- Pesticides Matrix Spiking Mix
- Chemical Name:
- Amino acid standards for fluorescence detection
- Chemical Name:
- Petroleum Refinery Pyrolized Gas (PY GAS)
- 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:
- MetaMizole iMpurity E
- Chemical Name:
- Abacavir Related CoMpound B
- Chemical Name:
- GalantaMine HydrobroMide Related CoMpounds Mixture
- Structure:
- Chemical Name:
- Ranitidine Resolution Mixture
- MF:
- C13H22N4O3S
- Structure:
- Chemical Name:
- Flutrimazole carbinol
- CAS:
- 128092-72-8
- MF:
- C19H14F2O
- Structure:
- Chemical Name:
- Nitrofurantoin-<sup>13</sup>C<sub>3</sub>
- CAS:
- 1217226-46-4
- MF:
- C8H6N4O5
- Structure:
- Chemical Name:
- Difloxacin-D3 hydrochloride hydrate(see Data Sheet)
- CAS:
- 1173021-89-0
- MF:
- C21H20ClF2N3O3
- Structure:
- Chemical Name:
- Phenylbutazone-13C12
- CAS:
- 1325559-13-4
- MF:
- C19H20N2O2
- Structure:
- Chemical Name:
- Isotianil
- CAS:
- 224049-04-1
- MF:
- C11H5Cl2N3OS
- Structure:
- Chemical Name:
- disodium dihydrogen N,N'-1,2-cyclohexanediylbis[N-(carboxylatemethyl)glycinate]
- CAS:
- 5786-78-7
- MF:
- C14H23N2NaO8
- Chemical Name:
- white copper(a copper-nickel alloy)
- Structure:
- Chemical Name:
- SULFONAZO III, TITRATION INDICATOR FOR S O4
- CAS:
- 164581-28-6
- MF:
- C22H12N4Na4O14S4
- Structure:
- Chemical Name:
- 5-ALLYL-5-ISOBUTYLBARBITURIC ACID-RING-13C4
- MF:
- C11H16N2O3
- Chemical Name:
- Plankton (trace elements)
- Structure:
- Chemical Name:
- Arsenic Standard for ICP
- MF:
- AsH3
- Chemical Name:
- MISA Group 20 Phenols Mix A
- Chemical Name:
- MALDI validation set PS, PMMA, PDMS, PEG and PSS Mp 5μ000-20μ000 certified according to DIN
- Chemical Name:
- 8260 Calibration Mix 2A
- Chemical Name:
- GMO Standard ERM-BF412, Maize Bt-11
- Chemical Name:
- Porcine muscle (chloramphenicol blank)
- Chemical Name:
- Freshwater sediment (butyltins)
- Chemical Name:
- Methane in helium
- Chemical Name:
- Human pancreatic Lipase (recombinant)
- Structure:
- Chemical Name:
- Glutaraldehyde-O-2,3,4,5,6-PFBHA-Oxime
- CAS:
- 932710-48-0
- MF:
- C19H12F10N2O2
- Chemical Name:
- EPA 8270 GC-MS Tuning Solution II
- Chemical Name:
- EPA 625 Base/Neutral 3 in Methylene Chloride
- Chemical Name:
- Hay powder (elements)
- Structure:
- Chemical Name:
- Zinc 68Zn solution (certified for isotope abundance ratio)
- MF:
- Zn
- Chemical Name:
- Oxygen in helium
- Chemical Name:
- LC-NH2 Test Mix
- Chemical Name:
- Fly ash from pulverised coal (trace elements)
- Chemical Name:
- Protein Standards (Micro) Set from human serum
- Chemical Name:
- EPA 8270/Appendix IX Nitrosamines Mix
- Chemical Name:
- Fuel Ethanol Residual Saccharides Mix
- Chemical Name:
- EPA Pesticide Mix
- Chemical Name:
- Bovine muscle (low residue of diethylstilboestrol)
- Chemical Name:
- EPA 525 PAH Mix B
- Chemical Name:
- Pesticide Performance Evaluation Mix-A
- Chemical Name:
- EPA 8270 LCS Mix 1
- Structure:
- Chemical Name:
- Chromium Standard for AAS
- MF:
- Cr
- Structure:
- Chemical Name:
- Algae bloom toxin, Biotoxin, Cyanobacterial toxin
- CAS:
- 157622-02-1
- MF:
- C54H72N8O12
- Structure:
- Chemical Name:
- 67392-87-4
- CAS:
- 67392-87-4