PURPOSE: To enhance the accuracy of measuring spot deposition in case of a small quantity of spot deposition by discharging a predetermined amount of a liquid from a spot deposition nozzle before allowing the nozzle to fall to bring a liquid globule into contact with an object to be subjected to spot deposition.
CONSTITUTION: When a spot deposition amount is a predetermined threshold value or less, a spot deposition nozzle 7 is set above a spot deposition position by the order of a computer and subsequently allowed to fall until the tip thereof reaches a predetermined position H1 to stop. Subsequently, a pulse motor 83 is rotated by predetermined quantity and a liquid F to be inspected is discharged from the nozzle 7. When a discharging amount is extremely small, the liquid F is adhered to the tip of the nozzle 7 in a liquid globule state as it is and does not drip. Next, when the nozzle 7 falls until the tip thereof reaches a predetermined position H2, the liquid F is brought into contact with a long test film 3 and the whole amount of the liquid F penetrates in and develops on the film 3. By this method, even a very small amount of the liquid F can be accurately weighed to be deposited on the film 3 as a spot.
ISHIZAKA HIDEO
SUGANO JUNJI
