Page 333 - Catalogue 2015

Cat. No. Tetrahydrofuran (unstabilized)
202207 HPLC-S

Appearance Clear colorless liquid Grad. elution H.Peak at 254nm max. 0.015AU
Grad. elution H.Peak at 280nm max. 0.005AU
Acidity (as Acetic acid) max. 0.002% T230nm min. 35%
T245nm min. 50%
Color (APHA) max. 10 T254nm min. 70%
T280nm min. 95%
Assay (GC, on anhydrous basis) min. 99.9% T300nm min. 98%

Peroxides (as H2O2) max. 0.01%

Residue after evaporation max. 0.0002%w/w

Water (KF) max. 0.02%w/w

Filtered through 0.2µm, filled under inert gas.

Cat. No. Tetrahydrofuran (unstabilized)
202289 HPLC-PLUS

Appearance Clear colorless liquid T230nm min. 35%
T250nm min. 65%
Acidity (as Acetic acid) max. 0.003% T270nm min. 88%
T310nm min. 99%
Color (APHA) max. 10 Water (KF) max. 0.03%w/w

Assay (GC, on anhydrous basis) min. 99.8%

Peroxides (as H2O2) max. 0.01%

Residue after evaporation max. 0.0001%w/w

T220nm min. 30%

Filtered through 0.2µm, filled under inert gas.

Cat. No. Tetrahydrofuran (unstabilized)
202206 HPLC

Appearance Clear colorless liquid Residue after evaporation max. 0.0003%w/w
Water (KF) max. 0.03%w/w
Acidity (as Acetic acid) max. 0.003% T230nm min. 30%
T270nm min. 88%
Color (APHA) max. 10 T310nm min. 99%

Assay (GC, on anhydrous basis) min. 99.8%

Peroxides (as H2O2) max. 0.01%

Filtered through 0.2µm, filled under inert gas.

Cat. No. Tetrahydrofuran (unstabilized)
202238 Spectrofluopure

Appearance Clear colorless liquid Peroxides (as H2O2) max. 0.01%
Residue after evaporation max. 0.0002%w/w
Acidity (as Acetic acid) max. 0.002% Water (KF) max. 0.02%w/w
T215nm min. 12%
Color (APHA) max. 10 T230nm min. 35%
T300nm min. 98%
F254nm (as Quinine) max. 1ppb

F365nm (as Quinine) max. 1ppb

Assay (GC, on anhydrous basis) min. 99.9%

Filtered through 0.2µm, filled under inert gas.

Cat. No. Tetrahydrofuran (unstabilized)
202284 LV-GC for organic trace analysis

Acidity (as Acetic acid) max. 0.002% Water (KF) max. 0.03%w/w
Color (APHA) max. 10 max. 0.01%
F254nm (as Quinine) max. 1ppb Peroxides (as H2O2) max. 10ng/L
F365nm (as Quinine) max. 1ppb
Assay (GC, on anhydrous basis) min. 99.9% GC/ECD Dioxins, Furans & max. 10ng/L
GC/FID suitability (as 2-Octanol) max. 10ng/ml PCB's max. 10ng/L
GC/ECD Suitability (as H. max. 10ng/L
Epoxide) GC/ECD any Pesticide (as max. 0.1mg/L
PAH test (<2ppb by HPLC) Passes test Lindane)
Residue after evaporation max. 0.0002%w/w max. 5ng/ml
GC/NPD any Pesticide (as min. 30%
Filtered through 0.2µm, filled under inert gas. Parathion)

Oil index (any hydrocarbon
C10-C40)

GC/ECD volatile impu. (as E.
Dibromide)

T230nm