supply of hplc columns supply of hplc columns , octadecyl silane ( c18 ) chemically bonded to porous silica ss column ( 250 x 4.6 5 ?m ) - pore size -95 ao surface area -160 m2 / gm. ph range 2-9 double end capped carbon load -9% - usp type - l1 , octadecyl silane ( c18 ) chemically bonded to porous silica ss column ( 250 x 4.6 5 ?m ) -pore size -80ao surface area -180 m2 / gm. ph range 2-11.5 double end capped carbon load -12.5% - usp type - l1 , octadecyl silane ( c18 ) chemically bonded to porous silica ss column ( 250 x 4.6 5 ?m ) - pore size -100 ao surface area -440 m2 / gm. ph range 1.5-10 end capped carbon load -23.2% - usp type - l1 , octadecyl silane ( c18 ) chemically bonded to porous silica ss column - ( 150 x 4.6 5 ?m ) - pore size -95 ao surface area -160 m2 / gm. ph range 2-9 double end capped carbon load -9%- usp type - l1 , octadecyl silane ( c18 ) chemically bonded to porous silica ss column - ( 150 x 4.6 5 ?m ) - pore size -100 ao surface area -440 m2 / gm. ph range 1.5-10 end capped carbon load -22% - usp type - l1 , octadecyl silane ( c18 ) chemically bonded to porous silica ss column - ( 100 x 4.6 5 ?m ) - pore size -95 ao surface area -160 m2 / gm. ph range 2-9 double end capped carbon load -9% -usp type - l1 , octadecyl silane ( c18 ) chemically bonded to porous silica ss column - ( 50 x 4.6 5 ?m ) - pore size -95 ao surface area -160 m2 / gm. ph range 2-9 double end capped carbon load -9% -usp type - l1 , octyl silane ( c8 ) chemically bonded to totally porous or superficially porous silica ss column - ( 250 x 4.65 ?m ) - pore size -95 ao surface area -160 m2 / gm. ph range 2-9 double end capped carbon load -7% -usp type - l7 , octyl silane ( c8 ) chemically bonded to totally porous or superficially porous silica ss column - ( 150 x 4.65 ?m ) -pore size -80 ao surface area -180 m2 / gm. ph range 2-9 double end capped carbon load -7.6% - usp type - l7 , octyl silane ( c8 ) chemically bonded to totally porous or superficially porous silica ss column - ( 100 x 4.65 ?m ) -pore size -100 ao surface area -440 m2 / gm. ph range 1.5-10 double end capped carbon load -15% - usp type - l7 , octyl silane ( c8 ) chemically bonded to totally porous or superficially porous silica ss column - ( 50 x 4.6 5 ?m ) - pore size -95 ao surface area -160 m2 / gm. ph range 2-9 double end capped carbon load -7% - usp type - l7 , nitrile group chemically bonded to porous silica particles ss column - ( 250 x 4.6 5 ?m ) - pore size -80 ao surface area -180 m2 / gm. ph range 1-8 temperature stability up to 80 degree celsius carbon load -4% -usp type - l10 , nitrile group chemically bonded to porous silica particles ss column - ( 150 x 4.6 5 ?m ) - pore size -80 ao surface area -180 m2 / gm. ph range 1-8 temperature stability up to 80 degree celsius carbon load -4% -usp type - l10 , an essential monomolecular layer of aminopropyl silane chemically boned to porous silica gel support ss column - ( 150 x 4.6 5 ?m ) - usp type - l8 , an essential monomolecular layer of aminopropyl silane chemically boned to porous silica gel support ss column - ( 250 x 4.6 5 ?m ) - usp type - l8 , phenyl group chemically boneded to porous silica particles ss column - ( 150 x 4.6 5 ?m ) - usp type l11 , phenyl group chemically boneded to porous silica particles ss column - ( 250 x 4.6 5 ?m ) - usp type l11 , a stainless-steel column packed with end capped polar embedded octadecyl silyl amorphous organosillica polymer such as waters x terra1 ( 250 x 4.6 5 ?m ) - usp type l1 , a chiral recognition protein ovomucoid chemically bonded to silica particles - ( 150 x 4.6 5 ?m ) -usp type l57 , ss column 30x7.8mm packed with a strong cation exchange resin consisting of sulphonated cross linked styrene - divinyl benzene co-polymer in hydrogen form ( 7?m ) , strong cation exchange resin ( calcium form ) 300mm x 7.8 ( 8 ?m ) , a stainless steel column packed with octadecyl silane with extra selectivity of a pentaflurophenyl bonded to porous sillica - ( 250 x 4.6 5 ?m )