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
SEMIVOLATILE BASE/NEUTRALS SURROGATE*SPIKE MIX SEMIVOLATILE BASE/NEUTRALS SURROGATE*SPIKE MIX
ALPHA-CYANO-4-PHENYLCINNAMIC ACID ALPHA-CYANO-4-PHENYLCINNAMIC ACID 63472-31-1 C16H11NO2
TIAPRIDE N-OXIDE TIAPRIDE N-OXIDE 63484-11-7 C15H24N2O5S
ACECLOFENAC - REFERENCE SPECTRUM ACECLOFENAC - REFERENCE SPECTRUM
ALIPHATIC HYDROCARBONS KIT ALIPHATIC HYDROCARBONS KIT
ORGANIC ACIDS KIT ORGANIC ACIDS KIT
SEMIVOLATILE BASE-NEUTRALS MATRIX SPIKE MIX A SEMIVOLATILE BASE-NEUTRALS MATRIX SPIKE MIX A
DIPHENOXYLATE HYDROCHLORIDE - REFERENCE SPECTRUM DIPHENOXYLATE HYDROCHLORIDE - REFERENCE SPECTRUM
METHYLTHIONINIUM IMPURITY A METHYLTHIONINIUM IMPURITY A 1231958-32-9 C16H18N3S+
BUFFER SOLUTION PH 11.0 (20 C) BUFFER SOLUTION PH 11.0 (20 C)
SCRATCH TEST REFERENCE MATERIAL SCRATCH TEST REFERENCE MATERIAL
CANNED FRESH CHUB CANNED FRESH CHUB
GAS-OIL (HIGH CONTENT SOLVENT YELLOW 124 GAS-OIL (HIGH CONTENT SOLVENT YELLOW 124
5-ALLYL-5-(1-METHYLBUTYL)BARBITURIC ACID-RING-13C4 5-ALLYL-5-(1-METHYLBUTYL)BARBITURIC ACID-RING-13C4 C12H18N2O3
AQUANAL(R)-PLUS SPECTRO CUVETTES AQUANAL(R)-PLUS SPECTRO CUVETTES
ANTHRACITE ANTHRACITE
BISPHENOL F BIS(3-CHLORO-2-HYDROXYPROPYL) ETHER BISPHENOL F BIS(3-CHLORO-2-HYDROXYPROPYL) ETHER 235741-59-0 C19H22Cl2O4
AMINO ACID STANDARD AMINO ACID STANDARD
BaquilopriM-D6 BaquilopriM-D6 1228182-50-0 C17H14D6N6
Firocoxib-D6 Firocoxib-D6 1353853-37-8 C17H20O5S
Robenidine-d8 HCl Robenidine-d8 HCl 1173097-77-2 C15H14Cl3N5
2-{2-[7-(DiethylaMino)-2-oxo-2H-1-benzopyran-3-yl]ethenyl}-1,3,3-triMethyl-3H-indoliuM iodide 2-{2-[7-(DiethylaMino)-2-oxo-2H-1-benzopyran-3-yl]ethenyl}-1,3,3-triMethyl-3H-indoliuM iodide 1352626-59-5 C26H29IN2O2
Oxybutynin IMpurity C Oxybutynin IMpurity C 1199574-70-3 C21H29NO3
489-32-7 489-32-7 489-32-7 C33H40O15
OseltaMivir IMpurity A OseltaMivir IMpurity A 1364932-19-3 C14H24N2O4
LaMivudine Resolution Mixture C LaMivudine Resolution Mixture C
Clenpenterol-D11 hydrochloride Clenpenterol-D11 hydrochloride 1325559-11-2 C13H21Cl3N2O
Miloxacin-D3 Miloxacin-D3 1228182-43-1 C12H9NO6
SulfaMonoMethoxine-13C6 hydrate (see Data Sheet) SulfaMonoMethoxine-13C6 hydrate (see Data Sheet) 1416768-32-5
Sulfisoxazole-13C6
(Sulfafurazole-13C6) Sulfisoxazole-13C6 (Sulfafurazole-13C6) 1334378-46-9 C11H13N3O3S
Decoquinate-d5
		
	Decoquinate-d5 1453100-61-2 C24H35NO5
Maize GMO Standard 98140
		
	Maize GMO Standard 98140
Stand for SCOTTY 110 HP Cylinder
		
	Stand for SCOTTY 110 HP Cylinder
ASTM D4815 Quantitative Calibration Mixture 3
		
	ASTM D4815 Quantitative Calibration Mixture 3
ASTM D4815 Quantitative Calibration Mixture 4
		
	ASTM D4815 Quantitative Calibration Mixture 4
ASTM D5307 Crude oil qualitative standard
		
	ASTM D5307 Crude oil qualitative standard
EPA 8270 Base-Neutrals Calibration Check Mix
		
	EPA 8270 Base-Neutrals Calibration Check Mix
Real Crystal IR sample cards
		
	Real Crystal IR sample cards
Titanium Standard for AAS
		
	Titanium Standard for AAS Ti
Replacement Viton O-rings for plunger Z506737
		
	Replacement Viton O-rings for plunger Z506737
α-Alumina (0.10 m2/g) (nitrogen BET specific surface area)
		
	α-Alumina (0.10 m2/g) (nitrogen BET specific surface area)
Quick Press KBr pellet kit
		
	Quick Press KBr pellet kit
HYDRANAL-Molecular sieve 0.3 nm
		
	HYDRANAL-Molecular sieve 0.3 nm
Florisil Applicability Test acc. to DIN EN ISO 9377-2/H53, Kit
		
	Florisil Applicability Test acc. to DIN EN ISO 9377-2/H53, Kit
EPA 8270 Base Neutral Calibration Mix 2
		
	EPA 8270 Base Neutral Calibration Mix 2
Model 226 Single-Stage Regulator, CGA-170, (for SCOTTY 74L cylinder)
		
	Model 226 Single-Stage Regulator, CGA-170, (for SCOTTY 74L cylinder)
Multielement standard solution 4 for ICP
		
	Multielement standard solution 4 for ICP
Agate vial and ball pestle for analog Wig-L-Bug grinder/mixer
		
	Agate vial and ball pestle for analog Wig-L-Bug grinder/mixer
Leaded brass
		
	Leaded brass
Galvanizing Alloy
		
	Galvanizing Alloy
Polystyrene standard set Mp 400-1′800′000
		
	Polystyrene standard set Mp 400-1′800′000
Titanium (impurities)
		
	Titanium (impurities)
HYDRANAL-KETOSOLVER HYDRANAL-KETOSOLVER
SIGMA PSEUDO(TM) NARCOTIC SCENT COCAINE FORMULATION SIGMA PSEUDO(TM) NARCOTIC SCENT COCAINE FORMULATION
SECOBARBITAL-D5 SECOBARBITAL-D5 130221-73-7 C12H13D5N2O3
EUROSOIL 1 EUROSOIL 1
TXPD, OEKANAL (N-(P-TOLYL)-N'-(3,5-XYLYL)-P-PHENYLENEDIAMINE) TXPD, OEKANAL (N-(P-TOLYL)-N'-(3,5-XYLYL)-P-PHENYLENEDIAMINE) 76154-76-2 C22H24N2
NORFLUOXETINE OXALATE NORFLUOXETINE OXALATE 107674-50-0 C18H18F3NO5
HYDRANALCHLOROFORM HYDRANALCHLOROFORM
Naratriptan Resolution Mixture Naratriptan Resolution Mixture
96946-42-8 96946-42-8 96946-42-8
L-Cefadroxil L-Cefadroxil 144790-28-3 C16H17N3O5S
N,N'-desoxycarbadox N,N'-desoxycarbadox 55456-55-8 C11H10N4O2
2,4-dinitro-N-(octylideneamino)aniline 2,4-dinitro-N-(octylideneamino)aniline 1726-77-8 C14H20N4O4
CESIUM CHLORIDE LANTHANUM CHLORIDE BUFFER CESIUM CHLORIDE LANTHANUM CHLORIDE BUFFER Cl4CsLa
Iron, AAS standard solution,  Fe 50g/l Iron, AAS standard solution, Fe 50g/l Fe
Volatile  Organic  Compounds  Mix  6 Volatile Organic Compounds Mix 6
N,Nμ-(Methylenediphenylene)bis{4-(2-pyridinyl)-1-piperazinecarboxamide}  (derivative  of  4,4μ-MDIP) N,Nμ-(Methylenediphenylene)bis{4-(2-pyridinyl)-1-piperazinecarboxamide} (derivative of 4,4μ-MDIP)
EPA  8080  Pesticides  Mix EPA 8080 Pesticides Mix
EPA  Purgeable  A EPA Purgeable A
EPA  Phthalate  Esters  Mix EPA Phthalate Esters Mix
EPA  8040A  Phenol  Calibration  Mix EPA 8040A Phenol Calibration Mix
Margarine  (vitamins) Margarine (vitamins)
EPA  VOC  Mix  7 EPA VOC Mix 7
Human  serum  (high  progesterone) Human serum (high progesterone)
EPA  524  Surrogate  Standard  Mix EPA 524 Surrogate Standard Mix
Human  serum  (low  creatinine) Human serum (low creatinine)
262-NP,  4-(1,1,5-Trimethylhexyl)phenol 262-NP, 4-(1,1,5-Trimethylhexyl)phenol 521947-27-3 C15H24O
Bovine  urine  (clenbuterol,  salbutamol  low  level) Bovine urine (clenbuterol, salbutamol low level)
EPA  8270  Supplemental  Mix  3 EPA 8270 Supplemental Mix 3
GC  Volatiles  Mix  1 GC Volatiles Mix 1
EPA  502/524  Volatiles  Organic  Calibration  Mix  A  (without  gases) EPA 502/524 Volatiles Organic Calibration Mix A (without gases)
Wastewater  (trace  elements) Wastewater (trace elements)
Boron  Standard  for  ICP Boron Standard for ICP BH3
EPA  VOC  Mix  1 EPA VOC Mix 1
Calcium  ICP/DCP  standard  solution Calcium ICP/DCP standard solution Ca
EPA  VOC  Mix  4 EPA VOC Mix 4
EPA  8040A  Phenols  Mix EPA 8040A Phenols Mix
Oxygenates  Mix  1 Oxygenates Mix 1
Ground  water  (trace  elements,  low  level) Ground water (trace elements, low level)
Calcium  matrix  modifier  solution Calcium matrix modifier solution Ca
2-(Bromomethyl)tetra-2H-pyran 2-(Bromomethyl)tetra-2H-pyran
2-Diphenylacetyl-3-(cyclohexyl-hydrazono)indan-1-one 2-Diphenylacetyl-3-(cyclohexyl-hydrazono)indan-1-one 108041-11-8 C29H26N2O2
Petroleum  Refinery  Reformate Petroleum Refinery Reformate
MISA  Group  17  Non-Halogen  Organic  Mix MISA Group 17 Non-Halogen Organic Mix
2-Methyl-3-amino-5-nitrobenzamide 2-Methyl-3-amino-5-nitrobenzamide 3572-44-9 C8H9N3O3
m-Nitrotoluene Standard m-Nitrotoluene Standard C7H7NO2
S-Metolachlor CGA 357704 S-Metolachlor CGA 357704 1217465-10-5 C14H17NO5
Rosiglitazone Related Compound A (25 mg) ((5Z)-5-{[4-({2-[methyl(2-pyridinyl)amino]ethyl}oxy)phenyl]methylidene}-1,3-thiazolidine-2,4-dione) Rosiglitazone Related Compound A (25 mg) ((5Z)-5-{[4-({2-[methyl(2-pyridinyl)amino]ethyl}oxy)phenyl]methylidene}-1,3-thiazolidine-2,4-dione) 160596-25-8 C18H17N3O3S
17β-Estradiol-[2,3,4-13C3] 17β-Estradiol-[2,3,4-13C3] 1261254-48-1 C18H24O2
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