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.
- Chemical Name:FEED FOR PIGS
- CAS:
- MF:
- Structure:
- Chemical Name:S(-)-CATHINONE HYDROCHLORIDE
- CAS:72739-14-1
- MF:C9H12ClNO
- Structure:
- Chemical Name:IFOSFAMIDE IMPURITY E
- CAS:42453-19-0
- MF:C5H11Cl2N
- Chemical Name:PANCREAS POWDER (PROTEASE) BRP
- CAS:
- MF:
- Chemical Name:RETINOL ESTERS
- CAS:
- MF:
- Chemical Name:OXFENDAZOLE WITH IMPURITY D
- CAS:
- MF:
- Chemical Name:EPA 624 CALIBRATION MIX 1
- CAS:
- MF:
- Chemical Name:PROTEIN STANDARD 10MG/ML
- CAS:
- MF:
- Chemical Name:SPECTRONIC STANDARDS KIT
- CAS:
- MF:
- Chemical Name:ESTUARINE SEDIMENT (TOTAL HG AND METHYLMERCURY)
- CAS:
- MF:
- Structure:
- Chemical Name:CHROMIUM(III) ICP/DCP STANDARD SOLUTION&
- CAS:
- MF:Cr
- Structure:
- Chemical Name:POTASSIUM ICP/DCP STANDARD SOLUTION
- CAS:
- MF:K
- Chemical Name:AQUANAL-PLUS SPECTRO TURBIDITY
- CAS:
- MF:
- Chemical Name:SEMIVOLATILE BASE-NEUTRALS MATRIX SPIKE MIX B
- CAS:
- MF:
- Chemical Name:STAND FOR SCOTTY 48 CYLINDER
- CAS:
- MF:
- Structure:
- Chemical Name:6-NOR-6-ALLYLLYSERGIC ACID DIETHYLAMIDE D-TARTRATE SALT
- CAS:143547-79-9
- MF:C26H33N3O7
- Structure:
- Chemical Name:D-AMPHETAMINE-D3 SULFATE SALT
- CAS:119039-59-7
- MF:C18H22D6N2O4S
- Structure:
- Chemical Name:MONOSTEARYL MALEATE (100 MG)
- CAS:2424-62-6
- MF:C22H40O4
- Structure:
- Chemical Name:134-84-9
- CAS:134-84-9
- MF:
- Chemical Name:Oxymetazoline impurity A
- CAS:
- MF:
- Chemical Name:AMMonia as N IC standard
- CAS:
- MF:
- Structure:
- Chemical Name:(±)-Epinephrine-D6
- CAS:1219803-77-6
- MF:C9H13NO3
- Chemical Name:GMO MAIZE POWDER STANDARD MON 863
- CAS:
- MF:
- Structure:
- Chemical Name:67-43-6
- CAS:67-43-6
- MF:
- Chemical Name:FLUORESCENT IEF MARKER PI 4.5
- CAS:
- MF:
- Structure:
- Chemical Name:FlufenaMic acid-13C6
- CAS:1325559-30-5
- MF:C14H10F3NO2
- Structure:
- Chemical Name:Oxyclosanid-13C6
- CAS:1353867-74-9
- MF:C13H6Cl5NO3
- Structure:
- Chemical Name:HYDROXYBUFURALOL MALEATE
- CAS:
- MF:C20H27NO7
- Chemical Name:Risperidone Related CoMpounds Mixture
- CAS:
- MF:
- Structure:
- Chemical Name:SalMeterol Resolution Check
- CAS:
- MF:C25H37NO4
- Structure:
- Chemical Name:4,5-Dihydroxy-2,2-bis(3-methyl-2-butenyl)- 4-cyclopentene-1,3-dione
- CAS:1891-42-5
- MF:C15H20O4
- Structure:
- Chemical Name:Dimethachlor Metabolite CGA 373464
- CAS:1196157-87-5
- MF:C12H16NNaO6S
- Structure:
- Chemical Name:Salbutamol acetate
- CAS:1420043-41-9
- MF:C15H25NO5
- Structure:
- Chemical Name:S-Metolachlor Metabolite NOA 413173
- CAS:1418095-19-8
- MF:C14H19NO6S
- Structure:
- Chemical Name:5-(Nonadecyl-1,1,2,2-d4)resorcinol
- CAS:1108148-95-3
- MF:C25H40D4O2
- Chemical Name:ASTM D4815 Quantitative Calibration Mixture 2
- CAS:
- MF:
- Chemical Name:EPA OLM04 Pesticide Standard Mix A-1
- CAS:
- MF:
- Chemical Name:EPA VOA Matrix Spike Mix
- CAS:
- MF:
- Chemical Name:EPA 8010 Halogenated VOC Mix 1
- CAS:
- MF:
- Chemical Name:EPA OLMO4 Pesticide Standard Mix A
- CAS:
- MF:
- Chemical Name:Hellma absorption cuvettes, ultra Micro
- CAS:
- MF:
- Chemical Name:Aldrich cuvette washer and drier
- CAS:
- MF:
- Chemical Name:Hellma calibration standards, Complete Glass Filter Set: F1, F2, F3, F4, F0
- CAS:
- MF:
- Chemical Name:Replacement nuts for Aldrich adjustable cell holder
- CAS:
- MF:
- Chemical Name:Adapter for agate vial for analog Wig-L-Bug grinder/mixer
- CAS:
- MF:
- Structure:
- Chemical Name:Lanthanum Standard for ICP
- CAS:
- MF:La
- Chemical Name:Nonylphenol diethoxylate solution
- CAS:
- MF:
- Chemical Name:Buffer solution pH 2.06 (20°C)
- CAS:
- MF:
- Structure:
- Chemical Name:CORTISOL REFERENCE SERUM PANEL
- CAS:
- MF:C21H30O5
- Chemical Name:FOLIN-DENIS' REAGENT
- CAS:
- MF:
- Structure:
- Chemical Name:COCAINE PROPYL ESTER HCL
- CAS:64091-46-9
- MF:C19H25NO4
- Structure:
- Chemical Name:0.05 MOL IODINE (I2) FIXANAL (IODATE)
- CAS:153507-24-5
- MF:I3K
- Chemical Name:SOYA-MAIZE OIL BLEND (FATTY ACID PROFILE
- CAS:
- MF:
- Chemical Name:GAS OIL (0.0203 % S)
- CAS:
- MF:
- Structure:
- Chemical Name:2R-EPHEDRONE HYDROCHLORIDE
- CAS:152610-69-0
- MF:C10H14ClNO
- Chemical Name:MICRO PARTICLES BASED ON POLYSTYRENE
- CAS:
- MF:
- Structure:
- Chemical Name:Calcium, AAS standard solution, Specpure, Ca 1000μg/ml
- CAS:
- MF:Ca
- Structure:
- Chemical Name:Platinum, AAS standard solution, Specpure, Pt 1000μg/ml
- CAS:
- MF:Pt
- Chemical Name:EPA CLP Volatiles Calibration Mix A
- CAS:
- MF:
- Chemical Name:EPA 625 Semivolatile Calibration Mix
- CAS:
- MF:
- Chemical Name:EPA Acid Calibration Mix 1
- CAS:
- MF:
- Structure:
- Chemical Name:Nickel ICP/DCP standard solution
- CAS:
- MF:Ni
- Chemical Name:Quebec Phenol MIx
- CAS:
- MF:
- Chemical Name:Rapeseed (oil, moisture, volatiles)
- CAS:
- MF:
- Chemical Name:EPA 525 Fortification Solution B
- CAS:
- MF:
- Chemical Name:Methyl Herbicide Mix
- CAS:
- MF:
- Chemical Name:EPA 8270 Nitrosamines Mix
- CAS:
- MF:
- Chemical Name:EPA 8240B/8260A System Performance Check Compounds
- CAS:
- MF:
- Structure:
- Chemical Name:2-Diphenylacetyl-3-(ethylidene-hydrazono)indan-1-one, 2-Diphenylacetyl-indan-1,3-dione-1-ethylidenehydrazone
- CAS:101228-21-1
- MF:C25H20N2O2
- Chemical Name:EPA 8040 Surrogate Standard Mix
- CAS:
- MF:
- Chemical Name:EPA Toxic Organic Mix 2A
- CAS:
- MF:
- Chemical Name:Mixed indicator 5 solution
- CAS:
- MF:
- Chemical Name:Gasoline Additives Mix
- CAS:
- MF:
- Chemical Name:HPLC Gradient System Diagnostics Mix
- CAS:
- MF:
- Chemical Name:Pork fat (PCB)
- CAS:
- MF:
- Chemical Name:EPA 608 Pesticides Mix
- CAS:
- MF:
- Chemical Name:JMHW VOC Mix A
- CAS:
- MF:
- Chemical Name:Volatile Free Acid Mix
- CAS:
- MF:
- Chemical Name:Herbicides Mix 2
- CAS:
- MF:
- Chemical Name:BRAND UV cuvette lids, PE
- CAS:
- MF:
- Chemical Name:QTM PAH Mix
- CAS:
- MF:
- Chemical Name:n-Paraffin Mix C18,C20,C22,C24
- CAS:
- MF:
- Chemical Name:EPA 531.1 Carbamate Mix
- CAS:
- MF:
- Chemical Name:Revised PVOC/GRO Mix
- CAS:
- MF:
- Chemical Name:Maize flour (deoxynivalenol, blank)
- CAS:
- MF:
- Chemical Name:EPA 502 Internal Standard Mix
- CAS:
- MF:
- Chemical Name:EPA 8270/625/CLP/Appendix IX Semivolatile Calibration Mix
- CAS:
- MF:
- Chemical Name:MISA Group 19 Base-Neutral Extractables Mix A
- CAS:
- MF:
- Structure:
- Chemical Name:Acrolein O-2,3,4,5,6-PFBHA-oxime, Propenal O-pentafluorophenylmethyl-oxime
- CAS:932710-55-9
- MF:C10H6F5NO
- Structure:
- Chemical Name:Silicon Standard for ICP
- CAS:
- MF:H4Si
- Chemical Name:EPA 508.1 Herbicides Mix
- CAS:
- MF:
- Chemical Name:Freshwater harbour sediment (PAHs)
- CAS:
- MF:
- Chemical Name:EPA 8270A Base-Neutrals Mix
- CAS:
- MF:
- Structure:
- Chemical Name:3-Acetyl-DON 13C labeled
- CAS:1217476-81-7
- MF:C17H22O7
- Chemical Name:Human serum (17β-estradiol, medium level)
- CAS:
- MF:
- Chemical Name:EPA 524 Internal Standard Mix
- CAS:
- MF:
- Chemical Name:EPA TCL PAH Mix
- CAS:
- MF:
- Structure:
- Chemical Name:Fumonisin B2-13C34 solution
- CAS:1217481-36-1
- MF:C34H59NO14
- Chemical Name:Amino acids standard
- CAS:
- MF:
- Structure:
- Chemical Name:Triprolidine Hydrochloride Z-IsoMer
- CAS:51657-91-1
- MF:C19H23ClN2