calcul concentration ethanol
Publié : 15/04/2020, 01:14
Bonjour, pouvez-vous vérifier avec moi la concentration de méthanol dans la solution standard ci dessous je ne trouve pas 3000 ppm comme indiqué mais plutôt 60 PPM?
Preparation of methanol stock solution: take 76 µl of methanol and transfer into a 10 ml volumetric flask dilute and make up with benzyl allcool
Preparation of methanol standard solution(3000 PPM): transfer 1 ml of methanol stock solution into a 100 ml volumetric flask dilute and make up with benzyl alcohol.take 5 ml of above standard solution transfer into a head space vial
Preparation of methanol stock solution: take 76 µl of methanol and transfer into a 10 ml volumetric flask dilute and make up with benzyl allcool
Preparation of methanol standard solution(3000 PPM): transfer 1 ml of methanol stock solution into a 100 ml volumetric flask dilute and make up with benzyl alcohol.take 5 ml of above standard solution transfer into a head space vial