flinnsci.com 159
Incubators
Incubator
Dependable incubator for cultures, eggs and biologicals. Has a see-through tinted
acrylic door with an ivory baked-on enamel exterior. Temperatures up to 70 °C can
be maintained accurately and uniformly. The heat-sensitive controller maintains
temperatures within 2 °C. Chrome-plated adjustable shelf and fixed bottom shelf.
Unit is equipped with separate power and element-on indicator lights. Laboratory
thermometer included. Capacity: 19.8 liters. Interior: 12" W x 10" D x 10" H. Exterior: 127/8"
W x 103/4" D x 15" H. UL listed.
Catalog No. Description Price/Each
AP1565 Incubator $470.00
Incufridge
Versatile Incufridge combines the best of both worlds! Functions as both an
incubator and a refrigerator, helping save valuable lab space and funds! Unique
unit provides either heating or cooling functions in the temperature range from
7–60 ˚C with a precision of 0.7 ˚C. The Incufridge is controlled by a microcomputer
that accurately holds the desired temperature. Features a three-digit
illuminated temperature display and an internal light for easy viewing. Includes
a 12 V DC power adapter and 2 removable shelves with plastic liners able to hold
beakers and flasks up to 500 mL. Capacity: 33 L. Exterior dimensions: 15" W x
151/2" H x 23" D. Interior dimensions: 12" W x 101/4" H x 161/2" D.
Catalog No. Description Price/Each
AP9955 Incufridge $1125.00
APPARATUS INCUBATORS
Incufridge
AP9955
Inoculating Loops for Flame Test
Inoculating Loop, Nichrome Wire
Overall length 8" with 25 gauge wire and aluminum handle. Wire portion 3" long.
Catalog No. Description Price/Each
AP1051 Inoculating Loop, Nichrome Wire $3.69
Inoculating Loop, Platinum
This platinum loop will better resist constant exposure to acid and flame than the
nichrome wire loop (AP1051). Overall length 26 cm with 28 gauge wire and bakelite
handle with nickel-plated brass rod. Wire portion 11/2" long.
Catalog No. Description Price/Each
AP1052 Inoculating Loop, Platinum $51.60
Jars See page 112.
Jars, Bell See page 178.
Kimwipes® See page 203.
Incubator
AP1565
Using platinum or nichrome wire loops for flame tests can be frustrating
since the wire loops must be impeccably cleaned. Any contamination will
lead to poor results.
Cotton swabs are an inexpensive alternative to platinum and nichrome
wire loops. Just moisten the cotton swab in distilled water. Then dip a
moistened swab into a metallic salt (e.g., lithium chloride, sodium chloride,
strontium chloride, barium chloride, potassium chloride or calcium chloride).
Insert the swab, now containing a few metallic salt crystals, into a burner
flame. Observe the color of the flame. The water on the swab will help prevent
it from catching on fire. Repeat the procedure with a new swab and a different
metallic salt. Wood splints can also be used for flame tests; see page 96.
Use an Inoculating Loop for a Flame Test
1. Carefully clean a platinum or nichrome wire loop by dipping it into a small amount of
concentrated hydro chloric acid.
2. Heat the wet-with-acid wire loop in the blue flame of a laboratory burner until it glows
cherry red. Any change in the flame color is an indication that the wire loop is not yet
clean and the cleaning process should be repeated. Any contamination of the wire loop
will yield misleading results.
Inoculating Loop,
Platinum
AP1052
Inoculating Loop,
Nichrome Wire
AP1051
Do a No-Fuss Flame Test
3. Dip the wire loop into a solution (about 1 Molar) containing the metallic ion to be tested
(e.g., lithium chloride, sodium chloride, strontium chloride, barium chloride, potassium
chloride, cupric chloride or calcium chloride).
4. Hold the wire loop in the flame and observe the flame color.
5. Repeat the entire procedure with the other metallic salt solutions, making sure to thoroughly
clean the wire loop between each sample.
Metallic Ion Flame Color Metallic Ion Flame Color
Ba2+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Green/yellow Na+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Yellow
Ca2+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brick red/yellow orange Sr2+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bright red
Li+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Crimson/scarlet Cu2+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Azure blue
K+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Violet
/?type=All&defaultType=Products&query=AP1565
/?type=All&defaultType=Products&query=AP9955
/?type=All&defaultType=Products&query=AP9955
/?type=All&defaultType=Products&query=AP1051
/?type=All&defaultType=Products&query=AP1051
/?type=All&defaultType=Products&query=AP1052
/?type=All&defaultType=Products&query=AP1052
/?type=All&defaultType=Products&query=AP1051
/?type=All&defaultType=Products&query=AP1565
/flinnsci.com