The phrase "as a reference protocol" is correct and usable in written English.
It can be used when discussing a standard or guideline that serves as a basis for comparison or instruction in a specific context.
Example: "The document outlines the procedures to follow, using ISO 9001 as a reference protocol for quality management."
Alternatives: "as a standard protocol" or "as a guideline protocol".
A combination of GenSolve reagents in Phase I and QIAamp reagents in Phase II (referred to as GQ method) was set as a reference protocol to which other tested methods were compared (Tables 1, 2, 3, 4, 5 and 6).
The present paper describes a study-case intervention of pedotechnologies as a reference protocol – within the whole of reclamation activities – to ad hoc designing and building Technosols, suitable for an environmental reclamation addressed to the agricultural reuse of abandoned limestone quarries.
Since CAODV is designed for CRAHNs by exploiting path or spectrum diversity, it is considered as a reference protocol.
As a reference protocol based on previous experiments [5], [6], mouse inoculations were performed using streptomycin treatment (S), food restriction (F), anesthesia with ketamine-xylazine (A), neutralization of stomach acids with sodium bicarbonate (B), and inoculation of V. cholerae grown to mid-log phase (L).
The procedures used as a reference protocol were filtration of 10 mL water samples through sterile syringe filters with 0.22 μm pore size (PES, Millipore, USA) followed by fixation with glutaraldehyde (0.25% final concentration) for 15 min at 4°C and freezing in liquid nitrogen during transport and storage at −80°C after arrival in the laboratory.
This substrate-uncoupler-inhibitor titration (SUIT) protocol is referred to as reference protocol (RP) designed to provide common reference for comparison of respiratory control in a wide range of preparations ranging from isolated mitochondria, tissues, and various cell types including human blood cells utilized in this experiment [8, 11].
The GQ protocol is set as the reference protocol above all the other protocols to which it is compared.
Each employee was examined both according to the protocol by Ohlsson et al. (1994) that used as the reference protocol and the HECO protocol.
The original protocol has been used for epidemiological research in many previous studies and is used as the reference protocol in this study.
The protocol by Ohlsson et al. (1994) with small revisions proposed by Nordander et al. (2009) was used as the reference protocol.
As mentioned before, the same diagnoses as in the reference protocol, i.e. 9 specific diagnoses for the neck/shoulders region (whereof seven on either the left or the right side), and 10 for each elbows/hands region could be established if the predefined criteria were fulfilled (Table 1).
