TY - JOUR
AU - Mitas, M.
AB - AN APPARATUS FOR BACTERIOLOGICAL INVESTIGATIONS N. Stoichev and M. Mitas UDC 616-078-71 Different methods are used in the seeding of liquid materials for baeteriologieal investigations. Most often of all, different forms of pipets and scarce syringes, and very loosely-woven platinum mesh are used in the microbiological control of ampoule preparations. Centrifugation of liquid materials for the weight of the residue is applied mainly in chemical bacteriology. One of the newer concentrating me- thods is membrane filtration, which, in spite of certain important advantages in comparison with classical methods, nevertheless has not had mass application [1-4]. In the process of searching for appropriate methods for the improvement of the method of membrane filtration, the so-called collective apparatus, whiehfound broad application in the investigation of liquid pharmaceutical preparations, was released by our instruction.* In Fig. 1 is shown the collective appara- tus consisting of a glass cylinder (i) and a glass bell jar (2) with a metallic injection needle (3). To the needle is attached a plastic hose filled in the lower end with wool (see Fig. 2) which serves as protection from secondary contamination. A glass disc having the same purpose as the plastie hose is attached to the lower 
TI - An apparatus for bacteriological investigations
JF - Pharmaceutical Chemistry Journal
DO - 10.1007/BF00760721
DA - 2004-11-23
UR - https://www.deepdyve.com/lp/springer-journals/an-apparatus-for-bacteriological-investigations-lttt4SLUyr
SP - 145
EP - 147
VL - 2
IS - 3
DP - DeepDyve
ER -