12.00 pH Value @25℃, (1) 500 mL bottle

Hanna Instruments

12.00 pH Value @25℃ - (1) 500 mL bottle

Quantity

12.00 pH Value @25℃, (1) 500 mL bottle Go to Product Description

ASK A QUESTION

Please fill in the form below to ask a question about this product:

  100% Secure Shopping

100% Secure Shopping & Payment Gateway

  Express Delivery

We aim to ship all stocked items within 1-3 working days.

  Hassle Free Returns

Not 100% happy with your order? find out more about our returns policy.

pH 12.00 Technical Calibration Buffer (500ml bottle), supplied with certificate of analysis. Designed and manufactured for those requiring a greater spectrum, as well as increased accuracy to readings, Hanna manufactures a Technical Buffer solution range that shares the accuracy of standard buffers, +/- 0.01 @ 25℃
HAN-HI-5012

Our standard delivery is 3-5 working days (where products are available) Monday to Friday, excluding public holidays when you order by 2pm. Details of our returns and cancellation policy can be found in our Returns Policy & Section 11 of our Terms and Conditions. For more information please contact us on 01924 444 577 or Email Us.

16 other products in the same category:

APT Agar - 500 g

£105.27 vat excl.

£126.32 vat Inc.

Availability: Out of stock
APT Agar is used for the cultivation of heterofermentative lactobacilli in a laboratory setting. APT Agar is not intended for use in the diagnosis of disease or other conditions in humans. Evans and Niven investigated the cultivation of heterofermentative lactobacilli, causing the faded or green discoloration of cured meat products. Deibel, Evans, and Niven tested thiamine-requiring bacteria, specifically Lactobacillus viridescens. Their formulations led to the development of APT Agar. Lactic acid bacteria, a group of acid-producing bacteria, include the genera Streptococcus, Leuconostoc, Pediococcus, and Lactobacillus. These organisms are widespread in nature, associated with bacterial spoilage of foods including dairy products, meat, and vegetables. APT Agar is used for cultivating heterofermentative lactic acid bacteria from food products.

Lauryl Sulfate Broth

£519.48 vat excl.

£623.38 vat Inc.

Availability: Out of stock
Lauryl Sulfate Broth is used for the detection of coliform bacteria in water and wastewater in a laboratory setting. Lauryl Sulfate Broth is not intended for use in the diagnosis of disease or other conditions in humans. The coliform group of bacteria includes aerobic and facultative anaerobic, Gram-negative, non-sporeforming bacilli that ferment lactose and form acid and gas at 35°C within 48 hours. Members of the Enterobacteriacae comprise the majority of this group, but organisms such as Aeromonas spp. may also be included. Procedures to detect and confirm coliforms are used in testing water, foods, dairy products, and other materials. Lauryl Sulfate Broth, also referred to as Lauryl Tryptose Broth, is prepared according to the formula of Mallmann and Darby. During their investigation, Sodium Lauryl Sulfate produced the best results for inhibition of organisms other than coliforms. Lauryl Sulfate Broth, abbreviated as LSB, is used in the presumptive phase of the Standard Total Coliform Fermentation Technique in the examination of water, and coliform detection of foods.

Simmons Citrate Agar - 500 g

£137.55 vat excl.

£165.06 vat Inc.

Availability: Out of stock
Simmons Citrate Agar is used for the differentiation of microorganisms on the basis of citrate utilization in a laboratory setting. Simmons Citrate Agar is not intended for use in the diagnosis of disease or other conditions in humans. Koser first developed a liquid medium for differentiating coliforms from fecal coliforms. Fecal coliforms were unable to use citrate as the sole source of carbon and inorganic ammonium salt as a sole source of nitrogen. Non-fecal coliforms, such as Enterobacter aerogenes could use citrate in such a medium with resultant alkalinity. Liquid medium had the disadvantage of appearing turbid when a large inoculum was used, although no growth had taken place. This observation led Simmons to devise a solid medium that eliminated the problem with turbidity. Simmons Citrate Agar is a modification of Koser’s medium, with the addition of bromothymol blue and 1.5% agar. Organisms able to metabolize citrate grow luxuriantly. The medium is alkalinized and changes from green to deep blue in 24 – 48 hours. Escherichia coli either do not grow at all on this medium or grow so sparsely that no change in reaction is apparent. Simmons Citrate Agar is recommended for differentiation of enteric Gram-negative bacilli from laboratory specimens, water samples, and food samples.

Phenylethanol Agar

£1,977.24 vat excl.

£2,372.69 vat Inc.

Availability: Out of stock
Phenylethanol Agar is used with blood for the selective isolation of Gram-positive cocci in a laboratory setting. Phenylethanol Agar is not intended for use in the diagnosis of disease or other conditions in humans. Brewer and Lilley reported the addition of phenylethanol to a nutritive medium permitted growth of Gram-positive organisms, but markedly to completely inhibited growth of Gram-negative organisms. Phenylethanol Agar inhibits swarming of Proteus spp., and can be used to selectively isolate anaerobic bacteria from specimens with mixed flora. Phenylethanol Agar is specified for use in several reference methods.