Accessories for Precision hydrogen generators
For Precision Hydrogen and Precision Hydrogen trace models.
Acylation kit
For improved volatility, better thermal stability or low limit of detection in gas chromatography prerequisite: quantitative, rapid and reproducible formation of only on derivative halogen atoms introduced by derivatisation (e.g. trifluoroacetates) allow specific detection (ECD) with the advantage of high sensitivity elution order and fragmentation patterns in MS can be influenced by a specific derivatisation.Reagents for silylation - alkylation (methylation) - acylation are available.Which is the proper reagent for acylation?Test kit for determination of the optimum acylation.
Acylation reagents for GC - Anhydrides
For improved volatility, better thermal stability or low limit of detection in gas chromatography prerequisite: quantitative, rapid and reproducible formation of only on derivative halogen atoms introduced by derivatisation (e.g. trifluoroacetates) allow specific detection (ECD) with the advantage of high sensitivity elution order and fragmentation patterns in MS can be influenced by a specific derivatisation.Reagents for silylation - alkylation (methylation) - acylation are available.Acylation with fluorinated acid anhydrides can be used for alcohols, phenols, carboxylic acids, amines, amino acids and steroids forming volatile, stable derivatives suited for FID as well as for ECD detection.by-products of acylation with anhydrides: corresponding acidsexcess reagent and the acid formed have to be removedHeptafluorobutyric acid anhydride (HFBA)m.w. 410.06, Bp 106 - 107°C (760mm Hg),C3F7 - CO - O - CO - C3F7density d20°/4° = 1.665
Acylation reagents for GC - Bisacylamides
For improved volatility, better thermal stability or low limit of detection in gas chromatography prerequisite: quantitative, rapid and reproducible formation of only on derivative halogen atoms introduced by derivatisation (e.g. trifluoroacetates) allow specific detection (ECD) with the advantage of high sensitivity elution order and fragmentation patterns in MS can be influenced by a specific derivatisation.Reagents for silylation - alkylation (methylation) - acylation are available.Acylation with fluorinated acid amides is recommended for alcohols, primary and secondary amines as well as for thiols under mild, neutral conditions. MBTFA also forms very volatile derivatives with carbohydrates.by-products: corresponding neutral acylamides, which can be easily removed due to their high volatility; because of neutral conditions and favourable chromatographic properties often removal of the bisacylamide is not necessary. Thus sample preparation is much more convenient.MBTFA / MBHFBAN-methyl-bis(trifluoroacetamide) MBTFAm.w. 223.08, Bp 123 - 124°C (760mm Hg), density d20°/4° = 1.55,CF3 - CO - N(CH3) - CO - CF3Due to their purpose, derivatisation reagents are very reactive substances. For this reason they should be stored cool and protected from moisture.The derivatisation reagents are supplied in vials with crimp caps for easy access with a syringe. Vials with pierced sealing disks have limited stability and should be used soon.
Air compressor for GC
For compressed air supply of Precision nitrogen and zero air generators for the GC.For simultaneous supply of nitrogen and zero air generators in one stackCan be stacked and combined with all Precision modulesVery quiet and low-vibration operationWith maintenance and repair status displaysScope of supply: 3 m PTFE tubing, 2 x 1/4" compression fitting, 1/4" tee compression fitting, 2.5 mm hex key, mains power cable for EU, UK and USSpecifications:Max. pressure:8.27 bar / 120 psiGas connection:1/4"Permissible ambient temperature:5 ... 35 °CDimensions (W x D x H):380 x 540 x 406 mmWeight:42 kgPower supply:208 ... 230 V, 50/60 HzWarranty:1 year
Alkylation kit
For improved volatility, better thermal stability or low limit of detection in gas chromatography prerequisite: quantitative, rapid and reproducible formation of only on derivative halogen atoms introduced by derivatisation (e.g. trifluoroacetates) allow specific detection (ECD) with the advantage of high sensitivity elution order and fragmentation patterns in MS can be influenced by a specific derivatisation.Reagents for silylation - alkylation (methylation) - acylation are available.Which is the proper reagent for methylation?Test kit for determination of the optimum alkylation.
Alkylation reagents for GC - Trimethylsulphonium hydroxide
For improved volatility, better thermal stability or low limit of detection in gas chromatography prerequisite: quantitative, rapid and reproducible formation of only on derivative halogen atoms introduced by derivatisation (e.g. trifluoroacetates) allow specific detection (ECD) with the advantage of high sensitivity elution order and fragmentation patterns in MS can be influenced by a specific derivatisation.Reagents for silylation - alkylation (methylation) - acylation are available.TMSH (0.2 M in methanol) M.G. 94.06
Capillary columns BP624
Cyanopropylphenyl Polysiloxane. For the analysis of volatile components of drinking water, chlorinated hydrocarbons, solvents and for the EPA method 624, USP G43 methods, SW-846 and 8240 / 8260 methods. Suitable replacement for: DB-624, OV-624, AT-624, HP-VOC, CP-Select624CB, 007-624, Rtx-Volatiles, VOCOL, ZB-624.
Capillary columns BPX-Volatiles
Cyanopropyl Polysilphenylene. Polar phase. For environmental analyses, volatile organic substances, alcohol analyses and for the EPA method 624, USP G43 methods, 502.2, SW-846 and 8240 / 8260 methods. Suitable replacement for: DB-VRX, HP-624, OPTIMA 624, ELITE-624, 007-624, RTXVOLATILES, SPB-624, TRV1, CPSIL 13 CB, VOCOL, VB-624, CP-624.
Capillary columns BPX1-SIMD
100% Dimethyl Polysiloxane. For high temperature hydrocarbon analysis and ASTM methods D2887 and D6532. Suitable replacement for: DB-2887, DB-HT Sim Dis, HP-1, Petrocol 2887, Petrocol EX2887, Rtx-2887.Non-polarLow bleed
Capillary columns BPX50
50% Phenyl Polysilphenylene-siloxane. For a range of EPA methods (604, 608, 8060, 8081), pharmaceutical applications, triazines, herbicides and steroids. Suitable replacement for: OV-17, SP-2250, DB-17, DB-17ms, DB-17ht, Rtx-50, SPB-50, HP-50+, HP-17.
Capillary columns GC BP1
100% Dimethyl Polysiloxane. General purpose GC column for all routine analyses such as hydrocarbons, aromatics, pesticides, phenol, herbicides and amines. Suitable replacement for: DB-1, DB-Petro, HP-1, HP-1MS, Rtx-1, Ultra-1, SPB-1, SPB-1 Sulfur, Petrocol DH, CP-Sil 5CB, VB-1, ZB-1, VF-1ms.Low bleedNon-polar
Capillary columns GC BP1 PONA
100% Dimethyl Polysiloxane. For the analysis of petroleum products. Suitable Replacement for: Petrocol DH, DB-Petro, HP-PONA, AT-Petro, Elite-PONA, ZB-1, 007-1-100-0.5F, Rtx-1PONA, CP Sil PONA.Non-polar phase for PONA analysisDetailed hydrocarbon analysis according to ASTMCrosslinked and washableVery high resolving power columns for complex samples
Capillary columns GC BP10
14 % Cyanopropylphenyl Polysiloxane. For analysis of organochlorine pesticides. Suitable replacement for: DB-1701, Rtx-1701, SPB-7, HP-1701, CP-Sil 19CB, 007-1701, PE-1701, SP-1701.Low bleedHighly inertAble to be solvent rinsed
Capillary columns GC BP20
Polyethylene Glycol phase. GC column for analyses such as alcohol, free acids, fatty acid methyl esters, aromatics, solvents and essential oils. Suitable replacement for: Carbowax 20M, CP-Wax 52 CB, DB-WAX, Elite-WAX, HP-20M, HP-INNOWax RH-WAX, Rtx-Wax, Stabilwax, SUPELCOWAX 10, TG-WaxMS, VF-WAXms, ZB-WAX.Industry standard wax columnPolar phase
Capillary columns GC BP21
Nitroterephtalic acid modified PEG. For low molecular weight acids, alcohols, aldehydes, acrylates and ketones. Suitable replacement for: DB-FFAP, HP-FFAP, Stabilwax-DA, CPWax-58CB.Polar phaseAble to be solvent rinsed (water or methanol are not recommended for rinsing)
Capillary columns GC BP5
5% Phenyl / 95% Dimethyl Polysiloxane. Low bleed. General purpose GC column for all routine analyses such as aromatics, pesticides, herbicides, hydrocarbons. Suitable replacement for: DB-5, Rtx-5, HP-5, Ultra-2, PTE-5, SPB-5, MDN-5, CP-Sil 8CB, VB-5, ZB-5, VF-5ms.
Capillary columns GC BP5MS
5% Phenyl Polysilphenylene-siloxane. For 5% GC-MS analysis and general purpose MS analysis. Suitable replacement for: DB-5ms, ZB-5ms, Rxi-5Sil MS, VF-5ms, CP-Sil 8 CB.
Capillary columns GC BPX-BIOD6584
Optimised for specified ASTM D6584 biodiesel methods.
Capillary columns GC BPX-Dioxin
For Dioxins and related compounds (POPs, PCBs, PCDFs, PCDDs).Very low bleedNon-polarExtremely inertIdeal for GC-MS
Capillary columns GC BPX35
35 % Phenyl Polysilphenylene-siloxane. Suitable Replacement for: DB-35, DB-35ms, Rtx-35, HP-35, HP-35MS, SPB-35, MDN-35.Very low bleedInertMid polarity columnEquivalent to USP phase G42High temperatureAble to be solvent rinsed
Capillary columns GC BPX5
5% Phenyl Polysilphenylene-siloxane. General purpose GC column for routine gas chromatographic analysis. Suitable replacement for: DB-5, DB-5ms, DB-5.625, XTI-5, Rtx-5ms, Ultra-2, HP-5, HP-5MS, HP5-TA, SPB-5, MDN-5S, CP-Sil8CB, Rxt-Sil 5MS, AT-5ms, VB-5, ZB-5, VF-5ms.Very low bleedNon-polarExtremely inert
Capillary columns GC BPX608
35% Phenyl Polysilphenylene-siloxane. For environmental analyses, EPA 608, pesticides and herbicides. Suitable replacement for: DB-608, Rtx-35, SPB-608, HP-35, ZB-35.