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Residue Analysis

Oekanal Standards

Standard Mixtures
Detailed Product List
Analysis of Isocyanates




Standard Mixtures for Residue Analysis

The following 2 new standard mixtures are produced for several environmental agencies. Both are delivered with chromatograms free of charge.


ARL Standards
Prod.No.
Content
Concentration
Shelf Life
Vial Size
33419
Benzothizole*
4-Nitrodiphenylamine
Aniline
Formanilide: 1-Chloro-4-Nitrobenzene
1000 mg/ml in acetone; * 200 mg/ml 2 years 5 ml
Click here to download example of chromatogram
Organosulfur Standard Mixture
Prod.No.
Content
Concentration
Shelf Life
Vial Size
33433
Methylmercapton
Methylsulphide
Dimethyldisulphide
Dimethyltrisulphide
1000 mg/ml in methanol 2 years 5 ml
Click here to download example of chromatogram
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Detailed Product List
Prod. No.
Name
Application
Pack Size
36959
Acenaphthene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
36958
Acenaphthylene solution, 100 ng/ml in cyclohexane   2 ml
45983
Acetonitrile   5 ml
45960
Acrylonitrile   5 ml
36975
Aflatoxine B1 solution, 5 ng/ml in methanol   2 ml
46422
Aflatoxine B2 solution, 5 ng/ml in methanol   2 ml
46418
Aflatoxine G1 solution, 5 ng/ml in methanol   2 ml
46423
Aflatoxine G2 solution, 5 ng/ml in methanol   2 ml
36976
Aflatoxine M1 solution, 0,5 ng/ml in methanol mycotoxine 2 ml, 10 ml
46421
Aflatoxine Mix 4 solution, each 2 ng/ml in methanol   1 ml
46130
4-Aminoazobenzene   250 mg
46085
o-Aminoazotoluene   250 mg
46073
4-Aminobiphenyl   250 mg
45959
1-Aminoguanidinium hydrogen carbonate   250 mg
46375
1-Aminoguanidinium nitrate solution, 100 ng/ml in acetonitrile   2 ml
45947
2-Amino-3-nitrophenol   250 mg
45978
2-Amino-4-nitrophenol   250 mg
45977
2-Amino-5-nitrophenol   250 mg
45946
4-Amino-2-nitrophenol   250 mg
46072
2-Anisidine   250 mg
36960
Anthanthrene solution, 100 ng/ml in toluene   2 ml
46051
Anthracene   250 mg
36957
Anthracene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
36941
Anthranilic acid iso-propylamid   250 mg
37879
Azulene pollutant 50 mg
45768
Benz[a]anthracene-7,12-dione pollutant 250 mg
45767
Benz[b]anthracene pollutant 100 mg
46080
Benzidine   250 mg
46186
Benzene, min. 99 %   5 ml
45769
Benz[b]flurene pollutant 100 mg
36956
Benzo[a]anthracene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
36955
Benzo[b]fluoranthene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
36954
Benzo[k]fluoranthene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
36961
1,2-Benzofluorene solution, 100 ng/ml in methanol   2 ml, 10 ml
45961
Benzonitrile   250 mg
36953
Benzo[g,h,i]perylene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
36952
Benzo[a]pyrene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
36962
Benzo[e]pyrene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
36911
Benzotrichloride   250 mg
36927
Benzyl butyl phthalate   250 mg
36933
Bis-decyl phthalate   250 mg
36934
Bis-methylglycol phthalate   250 mg
36938
Bis(1-octyl) phthalate   250 mg
36919
4-Bromobiphenyl   250 mg
36973
Bromochloromethane   250 mg
36970
Bromodichloromethane   250 mg
36972
Bromoform   250 mg
36942
2-Bromophenol   250 mg
36920
3-Bromophenol   250 mg
36921
1-Bromo-2-propanol   250 mg
46196
Butanone, min. 99 %   5 ml
45992
Butyronitrile   250 mg
46243
Carbon tetrachloride, min. 99 %   5 ml
46029
Chlorobenzene   1 g
45934
2-Chlorobenzotrichloride   250 mg
45997
4-Chlorobenzotrichloride   250 mg
45958
3-Chloro-4-fluoroaniline   250 mg
46282
4-Chloro-2-methylaniline   250 mg
45926
2-Chloronitrobenzene   250 mg
45957
3-Chloronitrobenzene   250 mg
45925
4-Chloronitrobenzene   250 mg
45999
2-Chloro-4-nitrotoluene   250 mg
45998
4-Chloro-2-nitrotoluene   250 mg
46244
1-Chloropropane, min. 99 %   5 ml
46245
2-Chloropropane, min. 99 %   5 ml
35754
Chrysene   100 mg
36963
Coronene solution, 100 ng/ml in toluene   2 ml, 10 ml
46111
p-Cresidine   250 mg
36922
o-Cresol   250 mg
36923
m-Cresol   250 mg
36924
p-Cresol   250 mg
46152
Cyclohexane, min. 99 %   5 ml
46197
Cyclohexanone, min. 99 %   5 ml
46153
Cyclopentane, min. 99 %   5 ml
45771
Decacyclene pollutant 250 mg
37880
Decahydronaphthalene, mixture of cis and trans isomers pollutant 100 mg
45773
cis-Decahydronaphthalene pollutant 250 mg
45774
trans-Decahydronaphthalene pollutant 250 mg
46154
n-Decane, min. 99 %   5 ml
46198
2-Decanone, min. 99 %   5 ml
36925
Diallyl phthalate   250 mg
46089
2,4-Diaminoanisole sulfate hydrate   250 mg
46118
4,4'-Diamino-3,3'-dichlorodiphenylmethane   100 mg
46106
4,4'-Diamino-3,3'-dimethyldiphenylmethane   100 mg
46092
4,4'-Diaminodiphenylmethane   250 mg
36930
2,4-Diamino-6-methylphenol dihydrochloride   250 mg
45923
2,3-Diaminotoluene   250 mg
45922
2,4-Diaminotoluene   250 mg
45921
2,6-Diaminotoluene   250 mg
45956
3,4-Diaminotoluene   250 mg
45920
2,5-Diaminotoluene sulfate   250 mg
36964
Dibenz[a,c]anthracene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
36950
Dibenz[a,h]anthracene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
45775
Dibenzofuran pollutant 250 mg
45776
Dibenzothiophene pollutant 250 mg
35975
1,2-Dibrom-1-chloroethane   1 g
36971
Dibromochloromethane   250 mg
46093
3,3'-Dichlorobenzidine dihydrochloride   100 mg
36912
2,4-Dichlorobenzyl chloride   250 mg
45932
2,6-Dichlorobenzyl chloride   250 mg
36913
3,4-Dichlorobenzyl chloride   250 mg
36967
1,1-Dichloroethane   250 mg
46246
1,2-Dichloroethane, min. 99 %   5 ml
46250
1,1-Dichloroethene, min. 99 %   5 ml
36968
cis-1,2-Dichloroethene   250 mg
36969
trans-1,2-Dichloroethene   250 mg
46251
Dichloromethane, min. 99 %   5 ml
46252
1,2-Dichloropropane   5 ml
45948
2,3-Dichlorotoluene   250 mg
45972
2,4-Dichlorotoluene   250 mg
45973
2,5-Dichlorotoluene   250 mg
45974
2,6-Dichlorotoluene   250 mg
45975
3,4-Dichlorotoluene   250 mg
36908
Dicyclohexyl phthalate   250 mg
46202
Diethyl ketone, min. 99 %   5 ml
37881
9,10-Dihydroanthracene pollutant 100 mg
45778
1,2-Dihydronaphthalene pollutant 250 mg
36965
Diindeno[1,2,3-c,d-1',2',3'-l,m]perylene solution, 10 ng/ml in toluene   2 ml, 10 ml
33490
HMDI; 4,4'-Diisocyanato-methylenedicyclohexane   2 ml
33427
2,4-TDI; 2,4-Diisocyanatotoluene   100 mg
46098
3,3'-Dimethoxybenzidine   100 mg
45779
9,10-Dimethylanthracene pollutant 100 mg
45780
7,12-Dimethylbenz[a]anthracene pollutant 100 mg
36980
7,12-Dimethylbenz[a]anthracene solution   1 ml, 10 ml
46101
3,3'-Dimethylbenzidine   100 mg
36943
1,2-Dimethylnaphthalene   250 mg
36914
1,3-Dimethylnaphthalene   250 mg
37883
1,4-Dimethylnaphthalene pollutant 100 mg
45785
1,6-Dimethylnaphthalene pollutant 100 mg
45786
1,8-Dimethylnaphthalene pollutant 100 mg
37882
2,6-Dimethylnaphthalene pollutant 100 mg
45787
Dimethylnaphthalene mixture of isomers pollutant 250 mg
36966
3,6-Dimethylphenanthrene solution, 100 ng/ml in methanol   2 ml, 10 ml
36910
Dimethyl terephthalate   250 mg
45963
2,4-Dinitroaniline   250 mg
45919
2,6-Dinitroaniline   250 mg
45964
3,5-Dinitroaniline   250 mg
45965
1,2-Dinitrobenzene   250 mg
45966
1,3-Dinitrobenzene   250 mg
45967
1,4-Dinitrobenzene   250 mg
45917
2,4-Dinitrobenzoic acid   250 mg
45930
3,4-Dinitrobenzoic acid   250 mg
45971
3,5-Dinitrobenzoic acid   250 mg
45950
2,4-Dinitrodiphenylamine   250 mg
45918
2,6-Dinitrophenol (with 0,2 ml H2O/g)   250 mg
45968
2,3-Dinitrotoluene   250 mg
45969
2,4-Dinitrotoluene   250 mg
45970
2,6-Dinitrotoluene   250 mg
45788
9,10-Diphenylanthracene pollutant 250 mg
45783
Dodecahydrotriphenylene pollutant 250 mg
46155
n-Dodecane, min. 99 %   5 ml
46253
Epichlorhydrin, min. 99 %   5 ml
46139
Ethanol   5 ml
46187
Ethylbenzene, min. 99 %   5 ml
45504
Fluoranthene   250 mg
36949
Fluoranthene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
36948
Fluorene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
46156
n-Heptadecane, min. 99 %   5 ml
46164
n-Heptane, min. 99 %   5 ml
46203
3-Heptanone, min. 99 %   5 ml
46204
4-Heptanone, min. 99 %   5 ml
46169
n-Hexadecane, min. 99 %   5 ml
36932
Hexadecyltrimethylammonium bromide   1 g
46170
n-Hexane, min. 99 %   5 ml
46205
2-Hexanone, min. 99 %   5 ml
46206
3-Hexanone, min. 99 %   5 ml
33490
HMDI; 4,4'-Diisocyanato-methylenedicyclohexane   2 ml
45789
Indane pollutant 250 mg
45790
1,3-Indanedione pollutant 250 mg
45791
Indene pollutant 250 mg
36947
Indeno[1,2,3-c,d]pyrene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
45792
2-Methylanthracene pollutant 100 mg
45793
9-Methylanthracene pollutant 250 mg
46220
Methyl butyrate, min. 99 %   5 ml
46221
Methyl caprate, min. 99 %   5 ml
46222
Methyl caprylate, min. 99 %   5 ml
45794
3-Methylcholanthrene pollutant 100 mg
46434
3-Methylcholanthrene Solution   2 ml, 10 ml
46171
Methylcyclohexane, min. 99 %   5 ml
33428
4,4'-MDI; 4,4'-Methylene Bis(phenyl isocyanate)   100 mg
46227
Methyl enanthate, min. 99 %   5 ml
46228
Methyl hexanoate, min. 99 %   5 ml
46210
Methyl iso-butyl ketone, min. 99 %   5 ml
46212
Methyl iso-propyl ketone, min. 99 %   5 ml
46229
Methyl laurate, min. 99 %   5 ml
33493
2,6-TDI; 2-Methyl-m-phenylene diisocyanate   100 mg
46230
Methyl myristate, min. 99 %   5 ml
45795
1-Methylnaphthalene pollutant 250 mg
45796
2-Methylnaphthalene pollutant 250 mg
45982
2-Methyl-3-nitroaniline   250 mg
45952
2-Methyl-4-nitroaniline   250 mg
45984
2-Methyl-5-nitroaniline   250 mg
45953
2-Methyl-6-nitroaniline   250 mg
45951
4-Methyl-2-nitroaniline   250 mg
45929
4-Methyl-3-nitroaniline   250 mg
46235
Methyl palmitate, min. 99 %   1 g
46236
Methyl propionate min. 99 %   5 ml
46211
Methyl propyl ketone, min. 99 %   5 ml
46237
Methyl stearate, min. 99 %   1 g
46242
Methyl valerate, min. 99 %   5 ml
36926
Monomethyl phthalate   250 mg
46377
Musk ketone solution, 100 ng/ml in acetonitrile   2 ml
46376
Musk mosken solution, 100 ng/ml in acetonitrile   2 ml
46383
Musk xylol solution, 100 ng/ml in acetonitrile   2 ml
36946
Naphthalene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
34390
1-Naphthylamine   250 mg
46081
2-Naphthylamine   100 mg
45988
2-Nitroaniline   250 mg
45989
3-Nitroaniline   250 mg
45990
4-Nitroaniline   250 mg
36915
2-Nitroanisole   250 mg
36909
3-Nitroanisole   250 mg
36916
4-Nitroanisole   250 mg
45308
Nitrobenzene   250 mg
45985
2-Nitrotoluene   250 mg
45986
3-Nitrotoluene   250 mg
45987
4-Nitrotoluene   250 mg
45991
2-Nitro-m-xylene   250 mg
45942
4-Nitro-m-xylene   250 mg
45941
5-Nitro-m-xylene   250 mg
45944
3-Nitro-o-xylene   250 mg
45943
4-Nitro-o-xylene   250 mg
46172
n-Nonane, min. 99 %   5 ml
46173
n-Octadecane, min. 99 %   5 ml
46177
n-Octane, min. 99 %   5 ml
46213
2-Octanone, min. 99 %   5 ml
46214
3-Octanone, min. 99 %   5 ml
46117
4,4'-Oxydianiline   250 mg
35586
2-PCB (Ballschmiter No 1) pollutant 100 mg
36753
2,2'-PCB (Ballschmiter No 4) pollutant 10 mg
35587
2,2',3,3',4,4',5,5',6,6'-PCB
(Ballschmiter No 209)
pollutant 100 mg
35494
2,2',3,4,4',5'-PCB (Ballschmiter No 138) pollutant 10 mg
35495
2,2',3,4,4',5,5'-PCB (Ballschmiter No 180) pollutant 10 mg
35602
2,2',4,4',5,5'-PCB (Ballschmiter No 153) pollutant 10 mg
35603
2,2',4,5,5'-PCB (Ballschmiter No 101) pollutant 10 mg
35599
2,2',5,5'-PCB (Ballschmiter No 52) pollutant 10 mg
35588
2,3-PCB (Ballschmiter No 5) pollutant 100 mg
35589
2,4-PCB (Ballschmiter No 7) pollutant 100 mg
35601
2,4,4'-PCB (Ballschmiter No 28) pollutant 10 mg
35590
2,4,5-PCB (Ballschmiter No 29) pollutant 100 mg
36679
2,4',5-PCB (Ballschmiter No 31)   10 mg
35591
2,5-PCB (Ballschmiter No 9) pollutant 100 mg
35592
3-PCB (Ballschmiter No 2) pollutant 100 mg
35496
3,3',4,4'-PCB (Ballschmiter No 77) pollutant 10 mg
35593
3,4-PCB (Ballschmiter No 12) pollutant 100 mg
35595
3,5-PCB (Ballschmiter No 14) pollutant 100 mg
35596
4-PCB (Ballschmiter No 3) pollutant 100 mg
35597
4,4'-PCB (Ballschmiter No 15) pollutant 100 mg
36903
2,2',3,4,4',5'-PCB solution, 10 ng/ml in iso-octane pollutant 2 ml
36905
2,2',3,4,4',5,5'-PCB solution, 10 ng/ml in iso-octane pollutant 2 ml
36904
2,2',4,4',5,5'-PCB solution, 10 ng/ml in iso-octane pollutant 2 ml
36902
2,2',4,5,5'-PCB solution, 10 ng/ml in iso-octane pollutant 2 ml
36901
2,2',5,5'-PCB solution, 10 ng/ml in iso-octane pollutant 2 ml
36900
2,4,4'-PCB solution, 10 ng/ml in iso-octane pollutant 2 ml
36907
PCB-set, 6 single solutions, 2,4,4'-PCB, 2,2',5,5'-PCB, 2,2',4,5,5'-PCB, 2,2',3,4,4'5-PCB, 2,2',4,4',5,5'-PCB, 2,2',3,4,4',5,5'-PCB, each 10 ng/ml in 10 ml iso-octane (6 pack box)   1 each
36989
PCB standard solution 7 in iso-octane   2 ml, 10 ml
36906
PCB standard solution 6 Ballschmiter No. 28, 52, 101, 138, 153, 180 in iso-octane   2 ml, 10 ml
45797
Pentacene pollutant 100 mg
46178
n-Pentadecane, min. 99 %   5 ml
46179
n-Pentane, min. 99 %   5 ml
45798
Perylene pollutant 250 mg
36945
Phenanthrene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
45799
9-Phenylanthracene pollutant 250 mg
46209
Picric acid solution 100 ng/ml in acetonitrile   2 ml, 10 ml
36991
Polynuclear aromatic hydrocarbons 16 solution in cyclohexane   2 ml
36990
Polynuclear aromatic hydrocarbons 6 solution, TrinkwV Method in cyclohexane   2 ml
36979
Polynuclear aromatic hydrocarbons 16 solution in acetonitrile   2 ml, 10 ml
45976
Propionitrile   250 mg
45945
iso-Propylamine, anhydrous   1 g
46407
n-Propylamine   250 mg
45996
Pseudocumene   250 mg
36944
Pyrene solution, 100 ng/ml in cyclohexane   2 ml, 10 ml
46704
Pyridin   5 ml
46408
Stearyl stearate   100 mg
45993
Styrene   250 mg
33412
TCA; 2,3,4-Trichloroanisol   100 mg
33427
2,4-TDI; 2,4-Diisocyanatotoluene   100 mg
33493
2,6-TDI; 2-Methyl-m-phenylene diisocyanate   100 mg
45801
m-Terphenyl pollutant 250 mg
45800
o-Terphenyl pollutant 250 mg
45802
p-Terphenyl pollutant 250 mg
36928
1,2,3,5-Tetrachlorobenzene   250 mg
46254
1,1,1,2-Tetrachloroethane, min. 99 %   5 ml
46259
1,1,2,2-Tetrachloroethane, min. 99 %   5 ml
46260
Tetrachloroethene, min. 99 %   5 ml
46409
Tetracontane   100 mg
46180
n-Tetradecane, min. 99 %   5 ml
37884
1,2,3,4-Tetrahydronaphthalene pollutant 100 mg
46126
4,4'-Thiodianiline   250 mg
45979
o-Toluidine   250 mg
45980
m-Toluidine   250 mg
45981
p-Toluidine   250 mg
46188
Toluene, min. 99 %   5 ml
36917
1,3,5-Tribromobenzene   250 mg
36918
2,4,6-Tribromophenol   250 mg
45937
2,3,4-Trichloroaniline   250 mg
33412
2,3,4-Trichloroanisol; TCA   100 mg
46262
1,1,2-Trichloroethane, min. 99 %   5 ml
36940
2,2,2-Trichloroethanol   250 mg
46267
Trichloroethene, min. 99 %   5 ml
46268
Trichloromethane, min. 99 %   5 ml
45936
2,4,6-Trichloronitrobenzene   250 mg
46269
1,2,3-Trichloropropane, min. 99 %   5 ml
45931
2,3,6-Trichlorotoluene   250 mg
46181
n-Tridecane, min. 99 %   5 ml
46127
2,4,5-Trimethylaniline   100 mg
45935
1,2,3-Trimethylbenzene   250 mg
45939
2,3,6-Trinitrophenol (with 0.3-0.4 ml H2O/g)   250 mg
45804
Triphenylene pollutant 100 mg
46185
n-Undecane, min. 99 %   5 ml
46219
2-Undecanone, min. 99 %   5 ml
45927
Valeronitrile   250 mg
46194
m-Xylene, min. 99 %   5 ml
46189
o-Xylene, min. 99 %   5 ml
46195
p-Xylene, min. 99 %   5 ml
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Analysis of Isocyanates

Isocyanates are applied in the production of polyurethanes, pesticides and pharmaceuticals. As a result of their high reactivity, they are significantly toxic and workplace analysis is very important.

Most analysis methods are based on the derivatization with alcohols and amines. Now a new method is established using 4-Nitro-7-piperazino-2,1,3 benzoxadiazole (NBDPZ).1,2

NBDPZ (4-Nitro-7-piperazino-2,1,3 benzoxadiazole) readily reacts with isocyanates yielding the corresponding urea derivatives, which can be identified by RP-HPLC. NBDPZ guarantees increased selectivity due to more favourable detection wavelengths in the visible range.1,2



Visit our LC Derivatization Reagents webpage.



Products available

Derivatization Reagent
Prod.No.
Abbreviation
Name
Pack Size
92614
NBDPZ 4-Nitro-7-piperazino-2,1,3 benzoxadiazole
100 mg
Isocyanate Standards
Prod.No.
Abbreviation
Name
Pack Size
33427
2,4-TDI 2,4-Diisocyanatotoluene
100 mg
33493
2,6-TDI 2-Methyl-m-phenylene diisocyanate
100 mg
33428
4,4'-MDI 4,4'-Methylene bis(phenyl isocyanate)
100 mg
33490
HMDI 4,4'-Diisocyanato-methylene dicyclohexane
2 ml


Derivatization Reaction Scheme
MIC_NBDPZ
Scheme of the derivatization reaction of NBDPZ with methylisocyanate (MIC)
(reproduced with permission of The Royal Society of Chemistry)


Literature References
  1. M. Vogel, U. Karst: Anal. Chem. 2002, 74, 6418-6426; H. Henneken, R. Lindahl,
  2. A. Ostin, M. Vogel, J.-O. Levin, U. Karst: J. Environ. Monit., 2003, 5, 100-105


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