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