Rotary evaporator capable of accurately quantifying concentrated liquid and/or distillate

A rotary evaporator capable of quantifying concentrated liquid and distillate, comprising a support frame, a distillation flask and a condenser dismountably fixed on the support frame, and at least one of a concentrated liquid quantification assembly and a distillate quantification assembly,

• wherein the distillation flask is heated through a heating assembly, and a bottom of the condenser is connected with a collecting flask;
• wherein a distillation flask liquid discharge opening is at bottom portion of the distillation flask, and the distillation flask liquid discharge opening is connected with the concentrated liquid quantification assembly for quantifying the concentrated liquid;
• wherein the concentrated liquid quantification assembly includes a quantitative tube with quantitative scale lines, a first liquid discharge valve and a second liquid discharge valve, liquid discharge of the concentrated liquid and sealing of the distillation flask are controllable through the second liquid discharge valve disposed at a bottom of the quantitative tube;
• wherein the first liquid discharge valve is disposed at the distillation flask liquid discharge opening, and is configured to control discharge of the concentrated liquid and sealing of the distillation flask;
• wherein the heating assembly is an electric heating belt disposed at an outer wall of the distillation flask;
• wherein a collecting flask liquid release opening is at a bottom of the collecting flask, and the collecting flask liquid release opening is connected with the distillate quantification assembly for measuring the distillate;
• wherein the distillate quantification assembly includes a metering tube with metering scale lines, a first liquid release valve and a second liquid release valve, liquid discharge of the distillate and sealing are controllable through the second liquid release valve disposed at a bottom of the metering tube;
• and
• wherein the first liquid release valve is disposed at the collecting flask liquid release opening, and is configured to control distillate discharge and sealing.